A slag bunker cleaning device for a thermal power plant

Abstract

The present invention provides a slag bin cleaning device for a thermal power plant, comprising an outer cleaning cylinder and an inner cleaning cylinder, wherein a recovery funnel is provided at the first end of the inner cleaning cylinder, and a negative pressure tube is connected to the second end of the inner cleaning cylinder; a slip ring is installed in the chamber between the outer cleaning cylinder and the inner cleaning cylinder, and four sliders are fixedly connected to the outer ring of the slip ring; four limiting slides are provided on the outer cleaning cylinder, and each slider passes through each limiting slide; four rolling walking mechanisms are provided on the outside of the outer cleaning cylinder, and each rolling walking mechanism includes a first connecting rod, a second connecting rod and a roller, one end of the first connecting rod is hinged to the slider, and the other end of the first connecting rod is rotatably connected to the axle of the roller, one end of the second connecting rod is rotatably connected to the axle of the roller, and the other end of the second connecting rod is hinged to the outer wall of the outer cleaning cylinder. The slag bin cleaning device for a thermal power plant provided by the present invention can effectively clean waste slag in the slag bin or the slag bin connecting pipe, thereby improving the efficiency of waste slag cleaning.

Description

Technical Field

[0001] The present invention relates to the technical field of thermal power plant equipment, in particular to a slag bunker cleaning device for a thermal power plant. Background Art

[0002] A slag bin in a thermal power plant is a storage area for solid waste residue from flue gas, typically located below or to the side of the boiler. During thermal power generation, fuel combustion produces large amounts of waste gas and residue. Waste residue primarily consists of ash and slag. Ash is the solid waste produced when fly ash from coal combustion is captured by dust removal equipment, while slag is the solid waste produced by chemical reactions within the furnace. Slag bins in thermal power plants typically utilize a closed structure with internal dust removal equipment to reduce waste gas emissions. For example, once ash enters the bin, it is transported to a closed ash pit. After a series of transportation and treatment processes, the waste residue is transported via transportation equipment to an external treatment plant for comprehensive processing. Blockages in the slag bin can severely impact production efficiency. To ensure smooth operation, the bin requires regular cleaning.

[0003] Traditional cleaning methods usually require the use of cleaning vehicles or high-pressure water guns. Although this method can effectively remove the scale and slag inside the slag bin, this cleaning method not only has the problem of low cleaning efficiency, but also cannot effectively clean the inner walls of some conveying pipes connected to the slag bin of thermal power plants. Summary of the Invention

[0004] The object of the present invention is to provide a slag bunker cleaning device for a thermal power plant, which can effectively clean the waste slag in the slag bunker or the slag bunker connecting pipe, thereby improving the waste slag cleaning efficiency.

[0005] The present invention provides a slag bin cleaning device for a thermal power plant, comprising a cleaning outer cylinder and a cleaning inner cylinder, wherein the cleaning inner cylinder is installed inside the cleaning outer cylinder, a recovery funnel is provided at the first end of the cleaning inner cylinder, the outer port of the recovery funnel is connected to the port at the first end of the cleaning outer cylinder, a negative pressure pipe is connected at the second end of the cleaning inner cylinder, and the negative pressure pipe is connected to a negative pressure device; a slip ring is installed in a chamber between the cleaning outer cylinder and the cleaning inner cylinder, four sliders are fixedly connected to the outer ring of the slip ring, and each of the sliders is equidistantly distributed on the outer ring of the slip ring; four limiting slide grooves corresponding to each of the sliders are provided on the cleaning outer cylinder, and each limiting slide groove is extended along the length direction of the cleaning outer cylinder, and each of the limiting slide grooves is extended along the length direction of the cleaning outer cylinder. The slider passes through each of the limiting slide grooves, and each of the sliders slides with each of the limiting slide grooves; four rolling walking mechanisms corresponding to each of the sliders are provided on the outside of the cleaning outer cylinder, and each of the rolling walking mechanisms includes a first connecting rod, a second connecting rod and a roller, one end of the first connecting rod is hinged to the slider, the other end of the first connecting rod is rotatably connected to the wheel axle of the roller, one end of the second connecting rod is rotatably connected to the wheel axle of the roller, the other end of the second connecting rod is hinged to the outer side wall of the cleaning outer cylinder, and a waste slag removing mechanism is installed on the second connecting rod; a slip ring driving mechanism that drives the slip ring to move axially is also installed in the chamber between the cleaning outer cylinder and the cleaning inner cylinder.

[0006] According to a slag bin cleaning device for a thermal power plant provided by the present invention, four protrusions are provided on the inner ring of the slip ring, and the protrusions are respectively distributed on the inner ring of the slip ring at equal distances; two of the protrusions that are distributed opposite to each other are respectively provided with sliding through holes, and the other two protrusions that are distributed opposite to each other are respectively provided with threaded holes;

[0007] The slip ring drive mechanism includes two driving motors, two screw rods and two limit rods, each of the screw rods and each limit rod is respectively extended along the axial direction of the cleaning outer cylinder, the two limit rods pass through the two sliding through holes and slide correspondingly with the two sliding through holes, the two screw rods pass through the two threaded holes and threadedly fit with the two threaded holes; the two ends of each limit rod are respectively fixedly connected to the two first mounting platforms, and the first mounting platforms are respectively fixedly installed on the inner side walls of the cleaning outer cylinder; the two ends of each screw rod are respectively rotatably connected to the two second mounting platforms, and one end of each screw rod can pass through the corresponding second mounting platform and be driven and connected to the corresponding driving motor, and the second mounting platforms are respectively fixedly installed on the inner side walls of the cleaning outer cylinder.

[0008] According to a slag bin cleaning device for a thermal power plant provided by the present invention, a mounting portion is provided on the second connecting rod; the waste slag shoveling mechanism includes a rotating rod and a shovel plate, one end of the rotating rod is rotatably connected to the mounting portion via a connecting shaft, and the shovel plate is fixedly mounted on the other end of the rotating rod; a torsion spring is installed between the connecting shaft and the rotating rod, and a limit plate for limiting the rotation position of the rotating rod is also provided on the mounting portion.

[0009] According to a slag bin cleaning device for a thermal power plant provided by the present invention, a fixing ring is fixedly installed on the outer wall of the cleaning inner cylinder near the second end, and a plurality of connecting plates are connected between the fixing ring and the inner wall of the cleaning outer cylinder, and the plurality of connecting plates are distributed equidistantly around the circumference.

[0010] According to a slag bin cleaning device for a thermal power plant provided by the present invention, one end of each of the first connecting rods is hinged to each of the sliders through a first hinge shaft; four bosses corresponding to each of the second connecting rods are provided on the outer side of the cleaning outer cylinder, and the other end of each of the second connecting rods is hinged to each of the bosses through a second hinge shaft.

[0011] According to the present invention, a slag bin cleaning device for a thermal power plant also includes a cooling mechanism, which includes four connecting pipes arranged on the inner side wall of the cleaning inner cylinder and four water supply mains corresponding to the connecting pipes. The connecting pipes are respectively distributed in equal distances around the circumference, and the connecting pipes are respectively extended along the axial direction of the cleaning inner cylinder; a plurality of water spray heads are respectively provided on each of the connecting pipes, and the plurality of water spray heads are respectively arranged in sequence along the length direction of the connecting pipe; and the connecting pipes are respectively connected to the corresponding water supply mains through water supply branches.

[0012] According to a slag bin cleaning device for a thermal power plant provided by the present invention, a fixed platform is respectively installed on each of the second connecting rods, a sprinkler is installed on each of the fixed platforms, and a water supply hose is respectively connected to each of the sprinklers. Each of the water supply hoses passes through the side wall of the cleaning outer cylinder and is correspondingly connected to each of the water supply mains.

[0013] According to a slag bin cleaning device for a thermal power plant provided by the present invention, a plurality of fixing parts for fixing the water hose are provided on the second connecting rod, and the fixing parts and the fixing platform are respectively arranged on opposite sides of the second connecting rod, so that the water hose forms a bent section at a position close to the roller; a baffle for positioning the bent section is also provided on the second connecting rod, and the baffle is an arc-shaped plate adapted to the water hose, and the bent section is located in the arc-shaped plate.

[0014] According to a slag bin cleaning device for a thermal power plant provided by the present invention, a rotating wheel is fixedly installed on the wheel axle at a position corresponding to the baffle, and a plurality of arc-shaped protrusions are provided on the outer peripheral side of the rotating wheel. The plurality of arc-shaped protrusions are respectively distributed in circles at equal distances, and the arc-shaped protrusions can interfere with the surface of the bent section.

[0015] The slag bin cleaning device for a thermal power plant provided by the present invention comprises a cleaning outer cylinder and a cleaning inner cylinder, the cleaning inner cylinder is installed inside the cleaning outer cylinder, a recovery funnel is provided at the first end of the cleaning inner cylinder, the outer port of the recovery funnel is connected to the port at the first end of the cleaning outer cylinder, a negative pressure pipe is connected to the second end of the cleaning inner cylinder, and the negative pressure pipe is connected to the negative pressure device; when cleaning the slag bin, negative pressure can be generated by the negative pressure device, thereby adsorbing and removing the waste slag in the slag bin of the thermal power plant or in the connecting pipe of the slag bin; a slip ring is installed in the chamber between the cleaning outer cylinder and the cleaning inner cylinder, four sliders are fixedly connected to the outer ring of the slip ring, and the sliders are respectively distributed on the outer ring of the slip ring at equal distances; four limiting slides corresponding to the sliders are provided on the cleaning outer cylinder, each limiting slide extends along the length direction of the cleaning outer cylinder, each slider passes through each limiting slide, and each slider slides with each limiting slide, that is, the slip ring can move axially in the chamber between the cleaning outer cylinder and the cleaning inner cylinder; four corresponding sliders are provided on the outside of the cleaning outer cylinder A rolling walking mechanism, each rolling walking mechanism includes a first connecting rod, a second connecting rod and a roller, one end of the first connecting rod is hinged to the slider, the other end of the first connecting rod is rotatably connected to the roller axle, one end of the second connecting rod is rotatably connected to the roller axle, and the other end of the second connecting rod is hinged to the outer wall of the cleaning outer cylinder. That is, by providing the rolling walking mechanism, the cleaning device can be rolled along the inner wall of the slag bin or the slag bin connecting pipe; by installing a slip ring driving mechanism in the chamber between the cleaning outer cylinder and the cleaning inner cylinder to drive the slip ring to move axially, the distance between the roller and the cleaning outer cylinder can be adjusted by axial movement of the driving slip ring, so that the cleaning device can adapt to slag bins or slag bin connecting pipes of different sizes, thereby achieving adsorption and removal of waste slag in slag bins or slag bin connecting pipes of various sizes; by providing a waste slag shoveling mechanism on the second connecting rod, the waste slag on the inner wall of the slag bin or the slag bin connecting pipe can be shoveled away during the movement of the cleaning device along the slag bin or the slag bin connecting pipe to clean the slag, thereby improving the waste slag cleaning efficiency. Therefore, the slag bunker cleaning device for a thermal power plant provided by the present invention can effectively clean the waste slag in the slag bunker or the slag bunker connecting pipe, which not only improves the waste slag cleaning efficiency but also provides a better waste slag cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 This is a schematic structural diagram of a slag bin cleaning device for a thermal power plant according to the present invention;

[0018] Figure 2 This is a cross-sectional view of a slag bin cleaning device for a thermal power plant according to the present invention;

[0019] Figure 3 A partial cross-sectional view of a slag bin cleaning device for a thermal power plant according to the present invention;

[0020] Figure 4 This is a schematic diagram of the internal structure of the cleaning outer cylinder in the slag bin cleaning device for a thermal power plant according to the present invention;

[0021] Figure 5 This is a schematic diagram of the internal structure of the cleaning inner cylinder in the slag bin cleaning device for a thermal power plant according to the present invention;

[0022] Figure 6 This is a schematic diagram of the assembly of the slip ring and rolling travel mechanism in the slag bin cleaning device for a thermal power plant according to the present invention;

[0023] Figure 7 This is a structural diagram of the rolling travel mechanism of the slag bin cleaning device for a thermal power plant according to the present invention.

[0024] Description of reference numerals:

[0025] 1. Clean the outer cylinder; 101. First mounting platform; 102. Limiting chute; 103. Second mounting platform; 2. Clean the inner cylinder; 201. Fixing ring; 202. Connecting plate; 203. Recovery funnel; 3. Negative pressure pipe; 4. Rolling travel mechanism; 400. Mounting part; 401. Slip ring; 402. Bump; 403. Bayonet; 404. Slider; 405. First hinge shaft; 406. First connecting rod; 407. Axle; 408. Roller; 409. Second connecting rod; 41 0. Second articulated axis; 411. Connecting axis; 412. Rotating rod; 413. Shovel plate; 414. Limiting plate; 415. Fixed platform; 416. Sprinkler; 417. Fixing piece; 418. Rotating wheel; 419. Arc-shaped protrusion; 420. Baffle; 5. Boss; 6. Cooling mechanism; 601. Connecting pipe; 602. Sprinkler head; 603. Three-way valve; 604. Water main pipe; 605. Water branch pipe; 606. Water hose; 7. Driving motor; 8. Screw; 9. Limiting rod. DETAILED DESCRIPTION

[0026] The technical solutions of the present invention are described clearly and completely below with reference to the embodiments. It is obvious that the embodiments described are only a portion of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0027] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operate in a specific direction, and therefore should not be understood as limiting the present invention.

[0028] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a communication between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0029] like Figures 1 to 7 As shown, the thermal power plant slag bin cleaning device of the embodiment of the present invention includes a cleaning outer cylinder 1 and a cleaning inner cylinder 2. The cleaning inner cylinder 2 is installed inside the cleaning outer cylinder 1. A recovery funnel 203 is provided at the first end of the cleaning inner cylinder 2. The outer port of the recovery funnel 203 is connected to the port at the first end of the cleaning outer cylinder 1. A negative pressure pipe 3 is connected to the second end of the cleaning inner cylinder 2. The negative pressure pipe 3 is connected to the negative pressure device. When cleaning the slag bin, the negative pressure device can generate negative pressure, thereby providing adsorption force in the cleaning inner cylinder 2. The recovery funnel 203 can suck the waste slag in the thermal power plant slag bin or in the connecting pipe of the slag bin into the cleaning inner cylinder 2 through the negative pressure for collection, thereby achieving adsorption and removal of waste slag in the thermal power plant slag bin or the connecting pipe of the slag bin.

[0030] A slip ring 401 is installed in the chamber between the outer cleaning cylinder 1 and the inner cleaning cylinder 2. Four sliders 404 are fixedly connected to the outer ring of the slip ring 401. The sliders 404 are equidistantly distributed around the outer ring of the slip ring 401. Four limiting grooves 102 corresponding to the sliders 404 are provided on the outer cleaning cylinder 1. Each limiting groove 102 extends along the length of the outer cleaning cylinder 1. Each slider 404 passes through a corresponding limiting groove 102 and slides in engagement with each limiting groove 102. In other words, the slip ring 401 can move axially within the chamber between the outer cleaning cylinder 1 and the inner cleaning cylinder 2.

[0031] Specifically, four rolling travel mechanisms 4 are provided on the exterior of the cleaning outer cylinder 1, corresponding one-to-one to each slider 404. Each rolling travel mechanism 4 includes a first connecting rod 406, a second connecting rod 409, and a roller 408. One end of the first connecting rod 406 is hinged to the slider 404, and the other end of the first connecting rod 406 is rotatably connected to the axle 407 of the roller 408. One end of the second connecting rod 409 is rotatably connected to the axle 407 of the roller 408, and the other end of the second connecting rod 409 is hinged to the outer wall of the cleaning outer cylinder 1. A waste slag scraping mechanism is mounted on the second connecting rod 409. In other words, by providing four rolling travel mechanisms 4, the cleaning device can roll along the inner wall of the slag bin or the slag bin connecting pipe, thereby facilitating the cleaning device to absorb and remove waste slag within the slag bin or the slag bin connecting pipe. By setting up four waste slag removing mechanisms, the waste slag on the inner wall of the slag bin or the slag bin connecting pipe can be removed during the process of the cleaning device moving along the slag bin or the slag bin connecting pipe to clean the slag, thereby improving the waste slag cleaning efficiency.

[0032] A slip ring drive mechanism for driving the slip ring 401 to move axially is also installed in the chamber between the cleaning outer cylinder 1 and the cleaning inner cylinder 2. Due to the above-mentioned assembly connection between the slip ring 401 and the rolling travel mechanism 4, by controlling the axial movement of the slip ring 401, the angle between the first connecting rod 406 and the second connecting rod 409 can be changed, thereby adjusting the spacing between the rollers 408 relative to the cleaning outer cylinder 1 so that each roller 408 can roll against the inner wall of the slag bin or the slag bin connecting pipe, thereby enabling the cleaning device to adapt to slag bins or slag bin connecting pipes of different sizes, thereby achieving adsorption and removal of waste slag in slag bins or slag bin connecting pipes of various sizes.

[0033] Therefore, the slag bunker cleaning device for a thermal power plant according to the embodiment of the present invention can effectively clean the waste slag in the slag bunker or the slag bunker connecting pipe, which not only improves the waste slag cleaning efficiency but also provides a better waste slag cleaning effect.

[0034] Specifically, a bayonet 403 is provided at a position of the outer ring of the slip ring 401 corresponding to each slider 404 , and one end of each slider 404 is fixed in each bayonet 403 , thereby achieving a reliable fixed connection between the slider 404 and the slip ring 401 .

[0035] Specifically, one end of each first connecting rod 406 is hinged to each slider 404 via a first hinge shaft 405. Four bosses 5 corresponding to each second connecting rod 409 are provided on the outside of the cleaning outer cylinder 1, and the other end of each second connecting rod 409 is hinged to each boss 5 via a second hinge shaft 410.

[0036] In some embodiments of the present invention, four protrusions 402 are provided on the inner ring of the slip ring 401. The protrusions 402 are equidistantly distributed around the inner ring of the slip ring 401. Two of the protrusions 402 that are located opposite each other are provided with sliding through holes, and the other two protrusions 402 that are located opposite each other are provided with threaded holes.

[0037] The slip ring drive mechanism includes two drive motors 7, two screw rods 8, and two limit rods 9. Each screw rod 8 and each limit rod 9 extend axially along the cleaning outer cylinder 1. The two limit rods 9 extend through two sliding holes and slide in contact with the two sliding holes, and the two screw rods 8 extend through two threaded holes and threadedly engage with the two threaded holes. Each limit rod 9 has two fixed ends connected to two first mounting platforms 101, each of which is fixedly mounted on the inner sidewall of the cleaning outer cylinder 1. Each screw rod 8 has two rotationally connected ends connected to two second mounting platforms 103, and one end of each screw rod 8 can pass through a corresponding second mounting platform 103 to be driven and connected to a corresponding drive motor 7, wherein each second mounting platform 103 is fixedly mounted on the inner sidewall of the cleaning outer cylinder 1. That is, the drive motor 7 can drive the screw rod 8 to rotate, thereby driving the slip ring 401 to move up and down along the screw rod 8, while the slip ring 401 can slide up and down along the limit rod 9. That is, each limiting rod 9 can limit the up and down movement of the slip ring 401, thereby ensuring that the movement process of the slip ring 401 is more stable and reliable.

[0038] In some embodiments of the present invention, a mounting portion 400 is provided on the second connecting rod 409. The waste slag scraping mechanism includes a rotating rod 412 and a shovel plate 413. One end of the rotating rod 412 is rotatably connected to the mounting portion 400 via a connecting shaft 411, while the shovel plate 413 is fixedly mounted on the other end of the rotating rod 412. A torsion spring (not shown) is installed between the connecting shaft 411 and the rotating rod 412. A limit plate 414 is also provided on the mounting portion 400 to limit the rotational position of the rotating rod 412.

[0039] When the roller 408 collides with the inner wall of the slag bin or the slag bin connecting pipe, the shovel plate 413 can just collide with the inner wall of the slag bin or the slag bin connecting pipe, so that when the cleaning device moves along the slag bin or the slag bin connecting pipe, the waste slag on the inner wall of the slag bin or the slag bin pipe is shoveled away by the shovel plate 413. The scraped away waste slag is sucked into the cleaning inner cylinder 2 through the recovery funnel 203 under the action of negative pressure for collection, thereby achieving efficient cleaning of the waste slag.

[0040] Among them, by arranging a torsion spring between the connecting shaft 411 and the rotating rod 412, the shovel plate 413 can always keep rotating counterclockwise. Therefore, when the distance between the roller 408 and the cleaning outer cylinder 1 is adjusted, the rotating rod 412 will always control the shovel plate 413 to press against the inner wall of the slag bin or the slag bin pipe under the action of the torsion spring, thereby achieving efficient cleaning of the shovel plate 413, and ensuring the pressure of the shovel plate 413 when shoveling waste slag, and can stably shovel the waste slag off the inner wall of the slag bin or the slag bin pipe.

[0041] Among them, by setting a limit plate 414 on the mounting part 400, the limit plate 414 can limit the rotating rod 412, thereby preventing the rotating rod 412 from generating elastic force under the action of the torsion spring, causing the shovel plate 413 to be unable to contact the inner wall of the slag bin or the slag bin pipe.

[0042] In some embodiments of the present invention, a retaining ring 201 is fixedly mounted on the outer wall of the cleaning inner cylinder 2 near the second end. Multiple connecting plates 202 are connected between the retaining ring 201 and the inner wall of the cleaning outer cylinder 1. These connecting plates 202 are equidistantly distributed around the circumference. In other words, the arrangement of the retaining ring 201 and the connecting plates 202 ensures that the cleaning inner cylinder 2 is securely mounted within the cleaning outer cylinder 1.

[0043] In some embodiments of the present invention, the thermal power plant slag bunker cleaning device further includes a cooling mechanism 6, which includes four connecting pipes 601 disposed on the inner sidewall of the cleaning inner cylinder 2 and four water supply mains 604 corresponding to the connecting pipes 601. The connecting pipes 601 are equidistantly distributed around the circumference and extend axially along the cleaning inner cylinder 2. Multiple water spray heads 602 are provided on each connecting pipe 601, and the multiple water spray heads 602 are sequentially spaced along the length of the connecting pipe 601.

[0044] When the cleaning inner drum 2 collects waste residue, the waste residue may have a certain amount of heat. After absorption, the heat accumulation will cause the temperature to be too high, further causing damage to the cleaning device. The cooling mechanism 6 can be used to spray water into the cleaning inner drum 2 to achieve cooling, thereby avoiding excessive temperature in the waste residue.

[0045] When the cooling mechanism 6 is in operation, each connecting pipe 601 is connected to each corresponding water main pipe 604 through the water branch pipe 605. Each water main pipe 604 can deliver cold water to the corresponding connecting pipe 601 through each water branch pipe 605, and then spray the cold water into the cleaning inner drum 2 through the water spray head 602, thereby cooling the cleaning inner drum 2.

[0046] Among them, by arranging multiple connecting pipes 601 in an equidistant circular distribution on the inner side of the cleaning inner cylinder 2, the cooling area of the cooling mechanism 6 can be expanded. At the same time, by arranging multiple water spray heads 602 along the length direction on each connecting pipe 601, a longer cooling path can be further realized, thereby effectively cooling the heat of the waste residue in the cleaning inner cylinder 2.

[0047] Among them, each water main pipe 604 is connected to a water supply device respectively, and a water pump is set at the water outlet of the water supply device to supply water to each water main pipe 604.

[0048] In some embodiments of the present invention, a fixing platform 415 is mounted on each second connecting rod 409, a water sprayer 416 is mounted on each fixing platform 415, and a water hose 606 is connected to each water sprayer 416. Each water hose 606 passes through the side wall of the cleaning outer cylinder 1 and is connected to a corresponding water main pipe 604. The water main pipe 604, the water branch pipe 605, and the water hose 606 can be connected via a three-way valve 603 to control the direction of water delivery in the water main pipe 604.

[0049] When the shovel plate 413 cleans the waste slag on the inner wall of the slag bin or the slag bin pipe, the water main pipe 604 can be controlled to supply water to the water hose 606, and then the water is transported to the sprinkler 416 through the water hose 606 and sprayed outward, so as to disperse and soak the waste slag agglomerated on the inner wall of the slag bin or the slag bin pipe, further facilitating the shovel plate 413 to shovel off the agglomerated waste slag.

[0050] In some embodiments of the present invention, a plurality of fixing members 417 for fixing the water hose 606 are provided on the second connecting rod 409. The fixing members 417 and the fixing platform 415 are respectively arranged on opposite sides of the second connecting rod 409, so that the water hose 606 forms a bent section near the roller 408. The second connecting rod 409 is also provided with a baffle 420 for positioning the bent section. The baffle 420 is a curved plate that is compatible with the water hose 606, so that the bent section of the water hose 606 is located within the curved plate, thereby effectively positioning the water hose 606.

[0051] Specifically, a rotating wheel 418 is fixedly installed on the wheel axle 407 of the roller 408 at a position corresponding to the baffle 420, and a plurality of arc-shaped protrusions 419 are provided on the outer peripheral side of the rotating wheel 418. The plurality of arc-shaped protrusions 419 are distributed in circles at equal distances. When the rotating wheel 418 rotates, each arc-shaped protrusion 419 can respectively contact the surface of the bent section of the water hose 606.

[0052] That is, when the roller 408 rotates, the wheel axle 407 rotates synchronously, thereby driving the wheel 418 to rotate. During the rotation of the wheel 418, the arc-shaped protrusions 419 on the wheel 418 can indirectly contact the surface of the bent section of the connecting hose 606, thereby achieving intermittent pressure on the connecting hose 606, thereby controlling the water in the connecting hose 606 to be intermittently sprayed out, realizing periodic water spraying and avoiding water waste.

[0053] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A slag bunker cleaning device for a thermal power plant, characterized in that: The cleaning cylinder comprises a cleaning outer cylinder and a cleaning inner cylinder, the cleaning inner cylinder is installed inside the cleaning outer cylinder, a recovery funnel is provided at the first end of the cleaning inner cylinder, the outer port of the recovery funnel is connected to the port at the first end of the cleaning outer cylinder, a negative pressure tube is connected at the second end of the cleaning inner cylinder, and the negative pressure tube is connected to the negative pressure device; a slip ring is installed in the chamber between the cleaning outer cylinder and the cleaning inner cylinder, four sliders are fixedly connected to the outer ring of the slip ring, and each of the sliders is distributed on the outer ring of the slip ring at equal distances; four limiting slide grooves corresponding to each of the sliders are provided on the cleaning outer cylinder, and each limiting slide groove is extended along the length direction of the cleaning outer cylinder, and each slider passes through each corresponding The limiting slide groove, and each of the sliders slides with each of the limiting slide grooves respectively; four rolling walking mechanisms corresponding to each of the sliders are provided on the outside of the cleaning outer cylinder, and each of the rolling walking mechanisms includes a first connecting rod, a second connecting rod and a roller, one end of the first connecting rod is hinged to the slider, the other end of the first connecting rod is rotatably connected to the wheel axle of the roller, one end of the second connecting rod is rotatably connected to the wheel axle of the roller, and the other end of the second connecting rod is hinged to the outer side wall of the cleaning outer cylinder, and a waste slag scraping mechanism is installed on the second connecting rod; a slip ring driving mechanism that drives the slip ring to move axially is also installed in the chamber between the cleaning outer cylinder and the cleaning inner cylinder; A mounting portion is provided on the second connecting rod; the waste slag shoveling mechanism includes a rotating rod and a shovel plate, one end of the rotating rod is rotatably connected to the mounting portion via a connecting shaft, and the shovel plate is fixedly mounted on the other end of the rotating rod; a torsion spring is installed between the connecting shaft and the rotating rod, and a limit plate for limiting the rotation position of the rotating rod is also provided on the mounting portion; A fixing ring is fixedly installed on the outer wall of the cleaning inner cylinder near the second end. A plurality of connecting plates are connected between the fixing ring and the inner wall of the cleaning outer cylinder. The plurality of connecting plates are equidistantly distributed around the circumference.

2. The slag bunker cleaning device for a thermal power plant according to claim 1, characterized in that: Four protrusions are provided on the inner ring of the slip ring, and the protrusions are respectively distributed on the inner ring of the slip ring at equal distances; two of the protrusions that are distributed opposite to each other are respectively provided with sliding through holes, and the other two protrusions that are distributed opposite to each other are respectively provided with threaded holes; The slip ring drive mechanism includes two driving motors, two screw rods and two limit rods, each of the screw rods and each limit rod is respectively extended along the axial direction of the cleaning outer cylinder, the two limit rods pass through the two sliding through holes and slide correspondingly with the two sliding through holes, the two screw rods pass through the two threaded holes and threadedly fit with the two threaded holes; the two ends of each limit rod are respectively fixedly connected to the two first mounting platforms, and the first mounting platforms are respectively fixedly installed on the inner side walls of the cleaning outer cylinder; the two ends of each screw rod are respectively rotatably connected to the two second mounting platforms, and one end of each screw rod can pass through the corresponding second mounting platform and be driven and connected to the corresponding driving motor, and the second mounting platforms are respectively fixedly installed on the inner side walls of the cleaning outer cylinder.

3. The slag bunker cleaning device for a thermal power plant according to claim 1, characterized in that: One end of each first connecting rod is hinged to each slider through a first hinge shaft; four bosses corresponding to each second connecting rod are provided on the outside of the cleaning outer cylinder, and the other end of each second connecting rod is hinged to each boss through a second hinge shaft.

4. The slag bunker cleaning device for a thermal power plant according to any one of claims 1 to 3, characterized in that: It also includes a cooling mechanism, which includes four connecting pipes arranged on the inner side wall of the cleaning inner cylinder and four water supply mains corresponding to the connecting pipes. The connecting pipes are distributed in equal distances around the circumference, and the connecting pipes are extended along the axial direction of the cleaning inner cylinder; a plurality of water spray heads are respectively provided on each of the connecting pipes, and the plurality of water spray heads are respectively arranged in sequence along the length direction of the connecting pipe; and the connecting pipes are respectively connected to the corresponding water supply mains through water supply branches.

5. The slag bunker cleaning device for a thermal power plant according to claim 4, characterized in that: A fixed platform is installed on each of the second connecting rods, a sprinkler is installed on each of the fixed platforms, and a water hose is connected to each of the sprinklers. Each of the water hoses passes through the side wall of the cleaning outer cylinder and is connected to the corresponding water main pipe.

6. The slag bunker cleaning device for a thermal power plant according to claim 5, characterized in that: The second connecting rod is provided with a plurality of fixing parts for fixing the water hose, and the fixing parts and the fixing platform are respectively arranged on opposite sides of the second connecting rod, so that the water hose forms a bent section at a position close to the roller; the second connecting rod is also provided with a baffle for positioning the bent section, and the baffle is an arc-shaped plate adapted to the water hose, and the bent section is located in the arc-shaped plate.

7. The slag bunker cleaning device for a thermal power plant according to claim 6, characterized in that: A rotating wheel is fixedly mounted on the axle of the roller at a position corresponding to the baffle, and a plurality of arc-shaped protrusions are provided on the outer circumference of the rotating wheel. The plurality of arc-shaped protrusions are respectively distributed at equal distances around the circumference, and the arc-shaped protrusions can interfere with the surface of the bending section.

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