Thermal power plant boiler slag recovery device

Abstract

The invention discloses a thermal power plant boiler slag recovery device which comprises a slag recovery device body installed at the bottom of a combustion boiler, and a slag filtering plate is fixedly installed in the combustion boiler. A series of structures are arranged, slag in the treatment box can be integrally and automatically sprayed, subjected to dust falling and cooled when the slag is output, treated filter residues are automatically conveyed to the belt conveyor to be subjected to remote conveying work, the temperature of the slag is reduced in a water spraying mode, and the dust raising phenomenon is avoided; the dust suppression and cooling effects are achieved, the phenomena that the temperature of discharged filter residues is high and a large amount of flying dust is likely to be generated are prevented, the high-temperature scalding risk and the surrounding environment pollution phenomenon are reduced, the use safety and the environmental protection property are improved, and the practicability is high. And the filter residues subjected to dust falling and suppressing treatment can be subjected to integrated automatic pressure control compression and can be automatically discharged after being compressed, the phenomenon that the filter residues are fluffy and occupy too large space is reduced, and convenience is further provided for recycling work.

Description

Technical Field

[0001] The invention relates to the technical field of thermal power plants, in particular to a boiler slag recovery device for a thermal power plant. Background Art

[0002] The slag produced by thermal power plants is a kind of industrial solid waste, whose main components include silicon dioxide, aluminum oxide, iron oxide, calcium oxide, magnesium oxide, etc. The slag can be used in various ways after recycling. It can be used as building materials and road construction materials, as well as for soil improvement, water treatment and pollution prevention, and as raw materials in industrial production. The boiler slag of traditional thermal power plants is usually discharged separately by personnel using tools, which is time-consuming and labor-intensive.

[0003] In this regard, it can be learned from the search report of the new information search agency that the announcement number CN222164835U discloses a slag recovery device for a thermal power plant boiler, including a combustion mechanism for burning downstream slag, and also including a lower box mechanism installed at the bottom of the combustion mechanism for gathering slag and discharging it, a slag discharge mechanism for spirally pushing the slag to be discharged is installed in the middle of the lower box mechanism, and the lower box mechanism and the combustion mechanism are connected by disassembly; the lower box mechanism includes a guide box, a conveying path is arranged at the bottom of the guide box, a discharge pipe is arranged at the bottom of one end of the conveying path, and a lower connecting edge is arranged on the top circumference of the guide box; the thermal power plant boiler slag recovery device described therein ensures the convergence of slag and improves the effect of slag recovery through the setting of the guide box with a wide upper and narrow lower part; the setting of the upper and lower disassembly connection is convenient for disassembly, repair and maintenance; the setting of the slag discharge at the bottom of the end head reduces the entry of unreliable air and ensures the stability of boiler combustion.

[0004] The above technology can transport the internal filter residue outward by setting a guide box and a conveying channel at the bottom of the combustion furnace body, and setting spiral blades in the conveying channel driven by an electric motor, thereby reducing the phenomenon of manual discharge by personnel using tools. However, there are the following defects in actual use: 1. The discharged filter residue has a high temperature and a large dust phenomenon, which is difficult to be directly transported to a distant place by a conveyor, and there is a large risk of scalding personnel during recycling, and the environmental protection and safety are not ideal; 2. The directly discharged filter residue is relatively fluffy, lacks an integrated automatic compression structure, occupies a large space, and brings some inconvenience to the recycling work;

[0005] In order to solve the problems that the discharged filter residue has a high temperature and a large amount of dust, cannot be directly used in conjunction with the environmental protection and safety of the conveyor, and cannot be automatically compressed as a whole, resulting in a large space occupation, we have proposed a thermal power plant boiler slag recovery device to solve the above problems. Summary of the invention

[0006] The invention provides a thermal power plant boiler slag recovery device, which solves the problems that the discharged filter residue has a high temperature and generates a lot of dust, cannot be directly used in conjunction with a conveyor for environmental protection and safety, and cannot be automatically compressed in an integrated manner, resulting in a large occupied space.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a slag recovery device for a thermal power plant boiler, comprising a slag recovery device body installed at the bottom of a combustion boiler, a slag filter plate fixedly installed in the combustion boiler, the slag recovery device body comprising an arc-shaped bottom shell fixedly connected to the bottom of the combustion boiler, a vertical support plate fixed to the left side of the bottom of the arc-shaped bottom shell, and a fixed cover fixed to the left side of the arc-shaped bottom shell, a central shaft is rotatably installed on the left inner wall of the arc-shaped bottom shell, a spiral conveying blade is welded and fixed to the outside of the central shaft, and a driving motor whose output shaft is fixedly connected to the central shaft is fixedly installed on the left side of the fixed cover; the driving motor is used to drive the central shaft to rotate, and the spiral conveying blade is driven to convey the slag to the right vertical slag by the rotation of the central shaft;

[0008] A processing box is arranged on the right side of the arc-shaped bottom shell, a stainless steel filter plate is fixedly installed in the processing box, a discharge hole flush with the top of the stainless steel filter plate is opened on the right inner wall of the processing box, an inclined discharge pipe is fixedly connected between the left side of the processing box and the right side of the arc-shaped bottom shell, a lever-type reciprocating pushing and limiting mechanism fixedly sleeved on the central axis is embedded on the left inner wall of the processing box, an inclined guide plate located below the discharge hole is fixedly connected to the right side of the processing box, and a belt conveyor is arranged below the inclined guide plate; the provided discharge pipe is used for automatically discharging the slag transported to the right into the processing box, the lever-type reciprocating pushing and limiting mechanism is used for automatically reciprocatingly pushing the filter residue in the processing box to the right by leveraging its rotational force when the central axis rotates, and the provided discharge hole is used for discharging the slag pushed to the right onto the belt conveyor for external transportation;

[0009] A water tank is fixedly installed on the top of the processing box, and a leveraged intermittent self-spray dust suppression mechanism connected to the right end of the central axis is installed in the processing box, and one end of the leveraged intermittent self-spray dust suppression mechanism extends into the water tank; the leveraged intermittent self-spray dust suppression mechanism is used to automatically and intermittently spray dust and cool the slag entering the processing box by leveraging the rotational force of the central axis when it rotates.

[0010] Preferably, the leveraged reciprocating pushing and limiting mechanism includes a rectangular box which is embedded and fixed on the left inner wall of the processing box and has an opening on the right side. A rectangular tube is fixedly connected between the left side of the rectangular box and the right side of the vertical support plate. A leveraged transverse guide reciprocating thread drive assembly fixedly sleeved on the central axis is installed in the rectangular tube. The right end of the leveraged transverse guide reciprocating thread drive assembly extends into the rectangular box and is fixedly connected to a push plate flush with the top of the stainless steel filter plate. A baffle located below the discharge pipe is fixedly connected to the top left side of the push plate, and the rectangular box is slidably sleeved on the baffle.

[0011] Preferably, the leveraged transverse guide reciprocating thread drive assembly includes a rectangular inner tube slidably sleeved in the rectangular tube, the right end of the rectangular inner tube slides into the rectangular box and is fixedly connected to the left side of the push plate, a rotating shaft is rotatably installed in the rectangular tube, the right end of the rotating shaft is fixedly connected to a first reciprocating screw, a threaded sleeve on the first reciprocating screw is provided with a first reciprocating thread sleeve fixedly connected to the inner wall of the rectangular inner tube, the left end of the rotating shaft extends into the fixed cover, the rotating shaft and the center shaft are fixedly sleeved with sprockets located in the fixed cover, and the two sprockets are transmission-connected with the same chain.

[0012] Preferably, the leveraged intermittent self-spray dust suppression mechanism includes a fixed box fixedly connected between the front and rear inner walls of the processing box and rotatably sleeved on the central axis, a piston plate is provided in the sealing sliding sleeve inside the fixed box, a reciprocating threaded horizontal drive assembly fixedly connected to the right end of the central axis is installed between the left side of the piston plate and the side wall of the fixed box, the top of the fixed box is connected and fixed with a water suction conduit located on the right side of the piston plate, one end of the water suction conduit extends into the water tank and is connected and fixed with a first one-way valve with the top as an outlet, and the top right side of the fixed box is connected and fixed with a one-way spray dust suppression assembly.

[0013] Preferably, the reciprocating thread transverse drive assembly includes a rectangular guide tube fixedly connected to the top left side of the piston plate, a sliding sleeve in the rectangular guide tube is provided with a rectangular guide rod fixedly connected to the left inner wall of the fixed box, a second reciprocating screw is fixedly connected to the right end of the central axis, and a threaded sleeve on the second reciprocating screw is provided with a second reciprocating thread sleeve fixedly connected to the bottom of the rectangular guide tube.

[0014] Preferably, the one-way spray dust suppression assembly includes a second one-way valve connected and fixed to the right side of the top of the fixed box, a circular tube with sealing structures at the front and rear ends is fixedly installed on the right inner wall of the processing box, and a plurality of atomizing nozzles are connected and fixed at equal intervals in the front and rear directions at the bottom of the circular tube, and the top of the second one-way valve is an outlet and a U-shaped tube is connected and fixed to the top of the circular tube.

[0015] Preferably, the bottom of the vertical support plate and the bottom of the processing box are fixedly connected to the same bottom plate, the left bottom of the processing box is connected and fixed with a drain pipe located below the stainless steel filter plate, and the left end of the drain pipe is connected and fixed with a drain hose.

[0016] Preferably, a water filling pipe is connected and fixed to the top of the water tank.

[0017] Preferably, a rectangular guide hole is provided on the left side of the rectangular box and is slidably mounted on the outer side of the rectangular inner tube, and a rectangular through hole is provided on the left inner wall of the rectangular box and is slidably mounted on the outer side of the baffle.

[0018] Preferably, a top support compression self-opening mechanism matched with the discharge hole is also installed on the right side of the processing box. The top support compression self-opening mechanism is used to block the top support of the filter residue pushed and discharged at the discharge hole and detect the extrusion force, and automatically open and release the blockage when the preset pressure value is reached to allow it to be discharged, thereby achieving the effect of pressure-controlled top support compression treatment of the slag. The top support compression self-opening mechanism includes a fixed plate fixedly connected to the right side of the processing box by four bolts, and an L-shaped guide plate is fixedly connected to the right side of the fixed plate. The right side of the L-shaped guide plate is set as an arc structure, and a sliding sleeve is set on the L-shaped guide plate There is a movable plate, a pressure sensor is fixedly connected to the left side of the movable plate, a baffle plate which is in movable contact with the right side of the processing box and adapted to the discharge hole is fixedly connected to the left side of the pressure sensor, the right side of the baffle plate is rectangular and fixedly connected with four T-shaped guide rods, the movable plate sliding sleeve is arranged on the four T-shaped guide rods, an electric telescopic rod is fixedly installed on the top of the right side of the fixed plate, an L-shaped connecting rod is fixedly connected between the protruding end of the electric telescopic rod and the top of the movable plate, the top of the electric telescopic rod is fixed and electrically connected with a PLC controller, and the pressure sensor is electrically connected to the PLC controller.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. A slag recovery device for a thermal power plant boiler, which can automatically spray dust and cool the slag in the processing box when discharging the slag through the cooperation of a driving motor, an arc bottom shell, a central shaft, a spiral conveying blade, a processing box, a discharge pipe, a discharge hole, a stainless steel filter plate and a leveraged intermittent self-spraying dust suppression mechanism, and can achieve the effect of dust suppression and temperature reduction by spraying water to reduce the temperature of the slag and avoid dust, thereby preventing the discharged filter slag from having a high temperature and easily generating a large amount of dust, reducing the risk of high temperature scalding and pollution of the surrounding environment, and improving the safety and environmental protection of use;

[0021] 2. A boiler slag recovery device for a thermal power plant, which can automatically push out the filtered slag after the temperature reduction and dust suppression treatment through the cooperation of the central axis and the leveraging reciprocating pushing and limiting mechanism, and directly discharge the slag onto the belt conveyor after the dust reduction and dust suppression treatment to transport it to a distant recovery location, which is convenient for direct remote transportation with the belt conveyor, avoiding the phenomenon that it is difficult to transport it far out with the belt conveyor due to high temperature, and improving the applicability and use effect;

[0022] 3. A slag recovery device for a thermal power plant boiler, which uses a single drive motor to sequentially realize the output of slag from the arc bottom shell, spraying for cooling and dust suppression, and pushing out after treatment. The three functions do not require separate electric drive equipment, and have a good energy-saving application effect while the multi-functional mutual coordination and coordinated application;

[0023] 4. A boiler slag recovery device for a thermal power plant, which can automatically control the pressure and compress the filter residue after dust reduction and suppression treatment and automatically discharge it after compression through the set discharge hole, the leveraged reciprocating push-up limit mechanism and the top support compression self-opening mechanism, thereby reducing the phenomenon of excessive space occupation by the loose filter residue and further facilitating the recovery work.

[0024] The present invention is provided with a series of structures, which facilitates the automatic spraying of dust reduction and temperature reduction on the slag in the treatment box when the slag is discharged, and automatically transports the treated filter residue to the belt conveyor for remote transportation. The slag temperature is reduced and dust is avoided by spraying water, which is convenient for directly combining with the belt conveyor for remote transportation, and the effect of dust suppression and temperature reduction is achieved, which prevents the discharged filter residue from having a high temperature and easily generating a large amount of dust, reduces the risk of high-temperature scalding and pollution of the surrounding environment, improves safety and environmental protection, and facilitates the automatic pressure control and compression of the filter residue after dust reduction and dust suppression treatment and automatically discharges it after compression, reduces the phenomenon that the filter residue is fluffy and occupies too much space, and further facilitates the recycling work. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic structural diagram of a thermal power plant boiler slag recovery device proposed in Embodiment 1 of the present invention;

[0026] Figure 2 for Figure 1 A right view structural diagram of ;

[0027] Figure 3 This is a schematic diagram of a front cross-sectional view of a thermal power plant boiler slag recovery device proposed in the first embodiment of the present invention;

[0028] Figure 4 for Figure 3 A schematic diagram of the enlarged structure of part A;

[0029] Figure 5 for Figure 3 A schematic diagram of the enlarged structure of part B in FIG.

[0030] Figure 6 This is a schematic structural diagram of a thermal power plant boiler slag recovery device proposed in the second embodiment of the present invention;

[0031] Figure 7 for Figure 6 Schematic diagram of the structure viewed from above;

[0032] Figure 8 This is a schematic diagram of a front cross-sectional view of a thermal power plant boiler slag recovery device proposed in the second embodiment of the present invention;

[0033] Fig. 9 for Figure 8 Schematic diagram of the enlarged structure of part C in the figure.

[0034] In the figure: 100, combustion boiler; 200, filter residue filter plate; 300, belt conveyor; 1, arc bottom shell; 101, vertical support plate; 102, bottom plate; 103, central axis; 104, spiral conveying blade; 105, fixed cover; 106, driving motor; 2, processing box; 201, stainless steel filter plate; 202, drainage pipe; 203, discharge pipe; 204, discharge hole; 205, inclined guide plate; 3, lever-type reciprocating push material blocking mechanism; 301, rectangular tube; 302, rotating shaft; 303, sprocket; 304, chain; 305, rectangular box; 306, push plate; 307, baffle; 308, rectangular inner tube; 309, first reciprocating wire sleeve; 310 , the first reciprocating screw; 4, water tank; 5, leveraged intermittent self-spray dust suppression mechanism; 501, fixed box; 502, second one-way valve; 503, U-shaped tube; 504, round tube; 505, atomizing nozzle; 506, water suction duct; 507, first one-way valve; 508, piston plate; 509, rectangular duct; 510, rectangular guide rod; 511, second reciprocating wire sleeve; 512, second reciprocating screw; 6, top support compression self-opening mechanism; 601, L-shaped guide plate; 602, moving plate; 603, pressure sensor; 604, baffle plate; 605, T-shaped guide rod; 606, L-shaped connecting rod; 607, electric telescopic rod; 608, PLC controller. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0036] Embodiment 1

[0037] like Figures 1 to 5As shown, a slag recovery device for a thermal power plant boiler proposed in this embodiment includes a slag recovery device body installed at the bottom of a combustion boiler 100, a slag filter plate 200 is fixedly installed in the combustion boiler 100, and the slag recovery device body includes an arc-shaped bottom shell 1 fixedly connected to the bottom of the combustion boiler 100, a vertical support plate 101 fixed to the left side of the bottom of the arc-shaped bottom shell 1 and a fixed cover 105 fixed to the left side of the arc-shaped bottom shell 1, and a central shaft 103 is rotatably installed on the left inner wall of the arc-shaped bottom shell 1, wherein the left side of the arc-shaped bottom shell 1 A first circular through hole is provided on the inner wall, and a first bearing is fixedly mounted between the inner side of the first circular through hole and the outer side of the central shaft 103, which plays the role of rotating the central shaft 103. A spiral conveying blade 104 is welded and fixed to the outer side of the central shaft 103, and a driving motor 106 whose output shaft is fixedly connected to the central shaft 103 is fixedly mounted on the left side of the fixed cover 105; the driving motor 106 is used to drive the central shaft 103 to rotate, and the central shaft 103 is used to rotate and drive the spiral conveying blade 104 to transport the slag to the right vertical furnace;

[0038] A processing box 2 is arranged on the right side of the arc bottom shell 1, a stainless steel filter plate 201 is fixedly installed in the processing box 2, a discharge hole 204 flush with the top of the stainless steel filter plate 201 is opened on the right inner wall of the processing box 2, an inclined discharge pipe 203 is fixedly connected between the left side of the processing box 2 and the right side of the arc bottom shell 1, a lever-type reciprocating material pushing and limiting mechanism 3 fixedly sleeved on the central axis 103 is embedded on the left inner wall of the processing box 2, and the right side of the processing box 2 is fixedly connected with An inclined guide plate 205 is located below the discharge hole 204, and a belt conveyor 300 is arranged below the inclined guide plate 205; the discharge pipe 203 is arranged for automatically discharging the slag transported to the right into the processing box 2, and the lever-type reciprocating push-up limiting mechanism 3 is used to automatically reciprocate and push the filter residue in the processing box 2 to the right by leveraging the rotational force of the central shaft 103 when the central shaft 103 rotates, and the discharge hole 204 is arranged for discharging the slag pushed to the right onto the belt conveyor 300 for external transportation;

[0039] A water tank 4 is fixedly installed on the top of the processing box 2, and a water filling pipe is fixed on the top of the water tank 4. The water filling pipe is provided for personnel to add water and replenish water into the water tank 4. A lever-type intermittent self-spray dust suppression mechanism 5 connected to the right end of the central axis 103 is installed in the processing box 2. One end of the lever-type intermittent self-spray dust suppression mechanism extends into the water tank 4. The bottom of the vertical support plate 101 and the bottom of the processing box 2 are fixedly connected with the same bottom plate 102. The left bottom of the processing box 2 is connected and fixed with a drain pipe 202 located below the stainless steel filter plate 201, and the left end of the drain pipe 202 is connected and fixed with a drain hose; the lever-type intermittent self-spray dust suppression mechanism 5 is used to automatically and intermittently spray dust and cool the slag entering the processing box 2 by using its rotational force when the central axis 103 rotates. The stainless steel filter plate 201 is provided for filtering out excess water in the slag, and the drain hose is provided for personnel to guide the discharged water to the designated external area.

[0040] Specifically, the lever-type reciprocating pushing and limiting mechanism 3 includes a rectangular box 305 which is embedded and fixed on the left inner wall of the processing box 2 and has an opening on the right side, wherein the left inner wall of the processing box 2 is provided with a rectangular embedding hole fixedly connected to the outer side of the rectangular box 305, a rectangular tube 301 is fixedly connected between the left side of the rectangular box 305 and the right side of the vertical support plate 101, a lever-type transverse guide reciprocating thread drive assembly fixedly sleeved on the central axis 103 is installed in the rectangular tube 301, the right end of the lever-type transverse guide reciprocating thread drive assembly extends into the rectangular box 305 and is fixedly connected to a push plate 306 flush with the top of the stainless steel filter plate 201, the left top of the push plate 306 is fixedly connected to a baffle 307 located below the discharge pipe 203, the rectangular box 305 is slidably sleeved on the baffle 307, wherein the rectangular box 305 The left inner wall is provided with a rectangular through-hole which is slidably fitted with the outer side of the baffle plate 307, which serves to allow the baffle plate 307 to pass through and guide its horizontal sliding; the rectangular box 305, the rectangular tube 301, the lever-type transverse guide reciprocating thread drive assembly, the push plate 306 and the baffle plate 307 cooperate with each other, and the lever-type transverse guide reciprocating thread drive assembly is used to drive the push plate 306 to move back and forth right and left by leveraging its rotational force when the central shaft 103 rotates, and the push plate 306 is used to drive the baffle plate 307 to move back and forth right and left. When the push plate 306 moves back and forth right and left, it continuously pushes the filter residue entering the processing box 2 to the right, so as to achieve the effect of pushing the filter residue out through the discharge hole 204. When the baffle plate 307 moves to the right, it blocks the lower end of the discharge pipe 203 to prevent the filter residue from entering the left side of the push plate 306, thereby forming a stable and continuous pushing effect;

[0041] The lever-type transverse guide reciprocating thread drive assembly includes a rectangular inner tube 308 slidably sleeved in the rectangular tube 301, the right end of the rectangular inner tube 308 slides into the rectangular box 305 and is fixedly connected to the left side of the push plate 306, wherein the left side of the rectangular box 305 is provided with a rectangular guide hole slidably sleeved with the outer side of the rectangular inner tube 308, which plays the effect of allowing the rectangular inner tube 308 to pass through and guide its horizontal sliding, a rotating shaft 302 is rotatably installed in the rectangular tube 301, wherein a second circular through-hole is provided on the right side of the vertical support plate 101, a second bearing is fixedly installed in the second circular through-hole and the rectangular tube 301, the inner ring of the second bearing is fixedly sleeved with the outer side of the rotating shaft 302, which plays the effect of rotatably installing the rotating shaft 302, the right end of the rotating shaft 302 is fixedly connected with a first reciprocating screw 310, and a first reciprocating thread sleeve 309 fixedly connected to the inner wall of the rectangular inner tube 308 is threadedly sleeved on the first reciprocating screw 310, and the rotating shaft The left end of 302 extends into the fixed cover 105, and the rotating shaft 302 and the central shaft 103 are fixedly sleeved with a sprocket 303 located in the fixed cover 105, and the two sprockets 303 are connected to the same chain 304; the rectangular inner tube 308, the rotating shaft 302, the first reciprocating screw 310, the first reciprocating screw sleeve 309, the sprocket 303 and the chain 304 are matched to drive the upper sprocket 303 to rotate when the central shaft 103 rotates. The upper sprocket 303 drives the lower sprocket 303 to rotate through the chain 304, and the lower sprocket 303 drives the first reciprocating screw 310 to rotate through the rotating shaft 302. The rotation of the first reciprocating screw 310 drives the first reciprocating wire sleeve 309 to move back and forth right and left. The first reciprocating wire sleeve 309 drives the rectangular inner tube 308 to slide back and forth right and left in the rectangular tube 301, and the reciprocating right and left movement of the rectangular inner tube 308 is utilized to realize the reciprocating right and left movement of the push plate 306.

[0042] Furthermore, the intermittent self-spray dust suppression mechanism 5 with leverage includes a fixed box 501 fixedly connected between the front and rear inner walls of the treatment box 2 and rotatably sleeved on the central axis 103, wherein a third circular through-hole is opened on the left side of the fixed box 501, and the inner side of the third circular through-hole and the outer fixed sleeve of the central axis 103 are provided with the same third bearing for rotational support, and a sealing sliding sleeve is provided in the fixed box 501, wherein a sealing ring is bonded and fixed to the outer side of the piston plate 508 to slide in contact with the inner wall of the fixed box 501, and a reciprocating threaded horizontal drive assembly fixedly connected to the right end of the central axis 103 is installed between the left side of the piston plate 508 and the side wall of the fixed box 501, and the top of the fixed box 501 is connected to a water suction conduit 506 located on the right side of the piston plate 508, and one end of the water suction conduit 506 extends into the water tank 4 and is connected to a first one-way valve 507 with an outlet at the top, and the top right side of the fixed box 501 is connected to A one-way spray dust suppression component is fixed; the fixed box 501, the piston plate 508, the reciprocating threaded horizontal drive component, the water suction pipe 506, the first one-way valve 507 and the one-way spray dust suppression component are coordinated, and the reciprocating threaded horizontal drive component is used to drive the piston plate 508 to slide back and forth left and right in the fixed box 501 by using its rotational force when the central axis 103 rotates, wherein when the piston plate 508 moves to the left, the water in the water tank 4 is extracted in turn through the water suction pipe 506 and the first one-way valve 507, and as the piston plate 508 intermittently moves to the left, the water is gradually and continuously drawn into the fixed box 501, and the one-way spray dust suppression component is used to intermittently spray the slag in the processing box 2 to reduce dust and cool it down when the piston plate 508 reciprocates right and left, so as to achieve the effect of dust suppression and cooling, prevent the discharged filter residue from having a high temperature and easily generating a large amount of dust, reduce the risk of high temperature scalding and pollution of the surrounding environment, and improve the safety and environmental protection of use;

[0043] The reciprocating thread transverse drive assembly includes a rectangular guide tube 509 fixedly connected to the top left side of the piston plate 508, a rectangular guide rod 510 is slidably sleeved in the rectangular guide tube 509 and fixedly connected to the inner wall of the left side of the fixed box 501, a second reciprocating screw 512 is fixedly connected to the right end of the central shaft 103, and a second reciprocating wire sleeve 511 is threadedly sleeved on the second reciprocating screw 512 and fixedly connected to the bottom of the rectangular guide tube 509; the rectangular guide tube 509, the rectangular guide rod 510, the second reciprocating screw 512 and the second reciprocating wire sleeve 511 cooperate with each other, and when the central shaft 103 rotates, the second reciprocating screw 512 rotates the second reciprocating wire sleeve 511 to move back and forth left and right, and the second reciprocating wire sleeve 511 drives the rectangular guide tube 509 to slide back and forth left and right on the rectangular guide rod 510, and the reciprocating left and right movement of the rectangular guide tube 509 is used to drive the piston plate 508 to slide back and forth left and right in the fixed box 501;

[0044] The one-way spray dust suppression assembly includes a second one-way valve 502 connected and fixed to the right side of the top of the fixed box 501, a round tube 504 with a blocking structure at the front and rear ends is fixedly installed on the right inner wall of the processing box 2, and a plurality of atomizing nozzles 505 are connected and fixed at equal intervals in the front and rear directions at the bottom of the round tube 504, and the top of the second one-way valve 502 is an outlet and a U-shaped tube 503 is connected and fixed to the top of the round tube 504; the second one-way valve 502, the round tube 504, the atomizing nozzle 505 and the U-shaped tube 503 are arranged to cooperate with each other. After the piston plate 508 moves back and forth left and right to continuously draw water into the fixed box 501, each time the piston plate 508 moves to the right, it will squeeze the water in the fixed box 501. Under the squeezing force, the water is squeezed and pushed into the circular tube 504 through the second one-way valve 502 and the U-shaped tube 503 in turn, and then sprayed downward into the processing box 2 through multiple atomizing nozzles 505. The reciprocating intermittent pushing and pushing formed by the reciprocating left and right movement achieves the effect of spraying dust and cooling the slag in the processing box 2, thereby achieving the effect of dust suppression and cooling.

[0045] This embodiment can automatically spray dust reduction and temperature reduction on the slag in the treatment box 2 when outputting the slag, and automatically transport the treated filter residue to the belt conveyor 300 for remote transportation. The slag temperature can be reduced and dust can be avoided by spraying water, which is convenient for directly combining with the belt conveyor 300 to carry out remote transportation, and achieve the effect of dust suppression and temperature reduction, prevent the discharged filter residue from having a high temperature and easily generating a large amount of dust, reduce the risk of high temperature burns and pollution of the surrounding environment, and improve safety and environmental protection. In addition, a single drive motor 106 is used to drive the slag to be output from the arc bottom shell 1, spray for cooling and dust suppression, and push it out after treatment in sequence. The three functions do not require separate electric drive equipment, and have good energy-saving application effects while using multiple functions in a coordinated manner.

[0046] The method of using this embodiment is as follows: when the boiler slag recovery device of the thermal power plant is used, the filter residue is filtered through the filter residue filter plate and falls into the arc bottom shell 1. When discharged, the personnel starts the drive motor 106 to drive the central shaft 103 to rotate, and the central shaft 103 drives the spiral conveying blade 104 to rotate. When the spiral conveying blade 104 rotates, the filter residue is conveyed to the right. The conveyed slag is discharged to the right through the discharge pipe 203 onto the stainless steel filter plate 201 in the processing box 2, wherein the central shaft 103 also drives the second reciprocating screw when it rotates. 512 rotates, the second reciprocating screw 512 rotates the second reciprocating wire sleeve 511 to move back and forth, the second reciprocating wire sleeve 511 drives the rectangular guide tube 509 to slide back and forth on the rectangular guide rod 510, and the rectangular guide tube 509 drives the piston plate 508 to slide back and forth in the fixed box 501, wherein the piston plate 508 extracts water from the water tank 4 through the water suction pipe 506 and the first one-way valve 507 in sequence when it moves to the left, and squeezes the water sucked into the fixed box 501 when the piston plate 508 moves to the right. , as it reciprocates left and right, the piston plate 508 intermittently moves to the left to gradually and continuously pump water into the fixed box 501, and when the piston plate 508 squeezes the pumped water to the right, under the squeezing force, the water is squeezed and pushed into the circular tube 504 through the second one-way valve 502 and the U-shaped tube 503 in turn, and then sprayed downward into the processing box 2 through multiple atomizing nozzles 505. As the piston plate 508 reciprocates left and right to continuously pump and supply water, the slag in the processing box 2 is automatically sprayed to reduce dust and cool down when the slag is discharged. The slag temperature is reduced and dust is avoided by spraying water, so as to achieve the effect of dust suppression and cooling, prevent the discharged filter slag from having a high temperature and easily generating a large amount of dust, reduce the risk of high temperature scalding and pollution of the surrounding environment, and improve the safety and environmental protection of use; the stainless steel filter plate 201 is used to filter out excess water in the slag, and the drainage hose is used to guide the discharged water to the external designated area when one end is guided to the external designated area;

[0047] In addition, when the central shaft 103 rotates, the upper sprocket 303 is also driven to rotate. The upper sprocket 303 drives the lower sprocket 303 to rotate through the chain 304. The lower sprocket 303 drives the first reciprocating screw 310 to rotate through the rotating shaft 302. The rotation of the first reciprocating screw 310 drives the first reciprocating wire sleeve 309 to move back and forth right and left. The first reciprocating wire sleeve 309 drives the rectangular inner tube 308 to slide back and forth right and left in the rectangular tube 301. The rectangular inner tube 308 drives the push plate 306 to move back and forth right and left. The push plate 306 drives the baffle 307 to move back and forth right and left. When the push plate 306 moves back and forth right and left, it continuously pushes the filter residue entering the processing box 2 to the right, so as to realize the filter residue being filtered through the filter. The discharge hole 204 pushes the slag out, and the baffle 307 blocks the lower end of the discharge pipe 203 when it moves to the right, preventing the filtered residue from entering the left side of the push plate 306, forming a stable and continuous pushing effect. After the dust reduction and dust suppression treatment, the slag is directly discharged to the belt conveyor 300 and transported to a distant recovery position, which is convenient for combining with the belt conveyor 300 to directly carry out distant transportation. In addition, a single drive motor 106 is used to sequentially realize the output of the slag from the arc bottom shell 1, spraying for cooling and dust suppression treatment, and pushing and discharging after treatment. The three functions do not require separate electric drive equipment, and have good energy-saving application effects while using multiple functions in a coordinated manner.

[0048] Embodiment 2

[0049] like Figures 6 to 9As shown, on the basis of the first embodiment, the present embodiment differs from the first embodiment in that: a top support compression self-opening mechanism 6 cooperating with the discharge hole 204 is also installed on the right side of the processing box 2, and the top support compression self-opening mechanism 6 is used to block the top support of the pushed filter residue at the discharge hole 204 and detect the extrusion force, and automatically open and release the blockage when the preset pressure value is reached for the discharge, so as to achieve the effect of pressure-controlled top support compression treatment of the slag, and the top support compression self-opening mechanism 6 includes a fixed plate fixedly connected to the right side of the processing box 2 by four bolts, and an L-shaped guide plate 601 is fixedly connected to the right side of the fixed plate, and the right side of the L-shaped guide plate 601 is set as an arc structure, and a movable plate 602 is slidably sleeved on the L-shaped guide plate 601, wherein the right side of the movable plate 602 is provided with a sliding sleeve that is slidable with the outer side of the L-shaped guide plate 601 The rectangular sliding hole of the movable sleeve serves to guide the horizontal sliding of the movable plate 602. A pressure sensor 603 is fixedly connected to the left side of the movable plate 602. A baffle plate 604, which is in movable contact with the right side of the processing box 2 and matched with the discharge hole 204, is fixedly connected to the left side of the pressure sensor 603. The right side of the baffle plate 604 is rectangular and fixedly connected with four T-shaped guide rods 605. The movable plate 602 is slidably sleeved on the four T-shaped guide rods 605. An electric telescopic rod 607 is fixedly installed on the top of the right side of the fixed plate. An L-shaped connecting rod 606 is fixedly connected between the protruding end of the electric telescopic rod 607 and the top of the movable plate 602. A PLC controller 608 is fixed on the top of the electric telescopic rod 607 and electrically connected. The pressure sensor 603 is electrically connected to the PLC controller 608.

[0050] This embodiment can automatically control the pressure and compress the filter residue after the dust reduction and dust suppression treatment and automatically discharge it after compression, thereby reducing the phenomenon that the filter residue is fluffy and occupies too much space, and further facilitating the recycling work.

[0051] The method of using the present embodiment is as follows: Based on the first embodiment, the present embodiment differs from the first embodiment in that it also has the following functions: the pressure value for controlling the forward start of the electric telescopic rod 607 is preset by using the PLC controller 608 according to the conventional compression force requirement of the slag, and the reverse start reset is preset fifteen seconds after the forward start. When the push plate 306 pushes the slag to the right, the baffle plate 604 blocks the right side, and the pushed slag forms an extrusion effect on the baffle plate 604. Under the extrusion force, the slag is compressed, and the baffle plate 604 transmits the slag extrusion force it bears to the PLC controller 608. When the preset pressure value is reached, the PLC controller 608 controls the electric telescopic rod 607 to start forward, so that it is driven by the L-shaped connecting rod 606. The movable plate 602 slides to the right on the L-shaped guide plate 601, and the movable plate 602 drives the baffle plate 604 to move to the right through the pressure sensor 603, thereby removing the obstruction to the discharge hole 204. At this time, the compressed slag is pushed out through the discharge hole 204 by the push plate 306 which continues to move to the right, and is directly discharged to the belt conveyor 300 through the inclined guide plate 205 for external transportation. Fifteen seconds later, the PLC controller 608 controls the electric telescopic rod 607 to start and reset in reverse, and drives the baffle plate 604 to move back to the left and reset to block the discharge hole 204 again, and continue the blocking and compression work, thereby realizing the effect of automatic pressure control and compression of the filter residue after dust reduction and dust suppression treatment and automatically discharging it after compression, reducing the phenomenon that the filter residue is fluffy and occupies too much space, and further facilitating the recycling work.

[0052] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A slag recovery device for a thermal power plant boiler, comprising a slag recovery device body installed at the bottom of a combustion boiler (100), wherein a slag filter plate (200) is fixedly installed in the combustion boiler (100), characterized in that: The slag recovery device body comprises an arc-shaped bottom shell (1) fixedly connected to the bottom of the combustion boiler (100), a vertical support plate (101) fixed to the left side of the bottom of the arc-shaped bottom shell (1), and a fixed cover (105) fixed to the left side of the arc-shaped bottom shell (1); a central shaft (103) is rotatably mounted on the left inner wall of the arc-shaped bottom shell (1); a spiral conveying blade (104) is welded and fixed to the outer side of the central shaft (103); and a driving motor (106) whose output shaft is fixedly connected to the central shaft (103) is fixedly mounted on the left side of the fixed cover (105); A processing box (2) is arranged on the right side of the arc-shaped bottom shell (1), a stainless steel filter plate (201) is fixedly installed in the processing box (2), a discharge hole (204) flush with the top of the stainless steel filter plate (201) is opened on the right inner wall of the processing box (2), an inclined discharge pipe (203) is fixedly connected between the left side of the processing box (2) and the right side of the arc-shaped bottom shell (1), a lever-type reciprocating material pushing and limiting mechanism (3) fixedly sleeved on the central axis (103) is embedded on the left inner wall of the processing box (2), an inclined guide plate (205) located below the discharge hole (204) is fixedly connected to the right side of the processing box (2), and a belt conveyor (300) is arranged below the inclined guide plate (205); A water tank (4) is fixedly mounted on the top of the treatment box (2), and a lever-assisted intermittent self-spraying dust suppression mechanism (5) connected to the right end of the central axis (103) is mounted inside the treatment box (2), and one end of the lever-assisted intermittent self-spraying dust suppression mechanism extends into the water tank (4).

2. A thermal power plant boiler slag recovery device according to claim 1, characterized in that: The lever-type reciprocating pushing and limiting mechanism (3) comprises a rectangular box (305) which is embedded and fixed on the left inner wall of the processing box (2) and has an opening on the right side. A rectangular tube (301) is fixedly connected between the left side of the rectangular box (305) and the right side of the vertical support plate (101). A lever-type transverse guide reciprocating thread drive assembly which is fixedly sleeved on the central axis (103) is installed in the rectangular tube (301). The right end of the lever-type transverse guide reciprocating thread drive assembly extends into the rectangular box (305) and is fixedly connected to a push plate (306) which is flush with the top of the stainless steel filter plate (201). A baffle (307) located below the discharge pipe (203) is fixedly connected to the top of the left side of the push plate (306). The rectangular box (305) is slidably sleeved on the baffle (307).

3. A thermal power plant boiler slag recovery device according to claim 2, characterized in that: The lever-type transverse guide reciprocating thread drive assembly comprises a rectangular inner tube (308) slidably sleeved in the rectangular tube (301); the right end of the rectangular inner tube (308) slides into the rectangular box (305) and is fixedly connected to the left side of the push plate (306); a rotating shaft (302) is rotatably installed in the rectangular tube (301); a first reciprocating screw (310) is fixedly connected to the right end of the rotating shaft (302); a first reciprocating thread sleeve (309) is threadedly sleeved on the first reciprocating screw (310) and is fixedly connected to the inner wall of the rectangular inner tube (308); the left end of the rotating shaft (302) extends into the fixed cover (105); a sprocket (303) located in the fixed cover (105) is fixedly sleeved on the rotating shaft (302) and the central shaft (103); and the two sprockets (303) are transmission-connected to the same chain (304).

4. A thermal power plant boiler slag recovery device according to claim 1, characterized in that: The intermittent self-spraying dust suppression mechanism (5) comprises a fixed box (501) fixedly connected between the front and rear inner walls of the treatment box (2) and rotatably sleeved on the central axis (103); a piston plate (508) is provided in a sealing sliding sleeve inside the fixed box (501); a reciprocating threaded horizontal drive assembly fixedly connected to the right end of the central axis (103) is installed between the left side of the piston plate (508) and the side wall of the fixed box (501); a water suction conduit (506) located on the right side of the piston plate (508) is connected and fixed to the top of the fixed box (501); one end of the water suction conduit (506) extends into the water tank (4) and is connected and fixed to a first one-way valve (507) with an outlet at the top; and a one-way spray dust suppression assembly is connected and fixed to the right side of the top of the fixed box (501).

5. A thermal power plant boiler slag recovery device according to claim 4, characterized in that: The reciprocating thread transverse drive assembly comprises a rectangular guide tube (509) fixedly connected to the top left side of the piston plate (508); a rectangular guide rod (510) is provided in a sliding sleeve inside the rectangular guide tube (509) and is fixedly connected to the inner wall of the left side of the fixed box (501); a second reciprocating screw (512) is fixedly connected to the right end of the central axis (103); and a second reciprocating thread sleeve (511) is provided on the second reciprocating screw (512) and is fixedly connected to the bottom of the rectangular guide tube (509).

6. A thermal power plant boiler slag recovery device according to claim 4, characterized in that: The one-way spray dust suppression assembly comprises a second one-way valve (502) connected and fixed to the right side of the top of the fixing box (501); a circular tube (504) having a blocking structure at both the front and rear ends is fixedly installed on the right inner wall of the processing box (2); a plurality of atomizing nozzles (505) are connected and fixed at equal intervals in the front and rear directions at the bottom of the circular tube (504); the top of the second one-way valve (502) is an outlet and a U-shaped tube (503) is connected and fixed between the top of the circular tube (504).

7. A thermal power plant boiler slag recovery device according to claim 1, characterized in that: The bottom of the vertical support plate (101) and the bottom of the processing box (2) are fixedly connected to the same bottom plate (102); the left bottom of the processing box (2) is connected and fixed with a drainage pipe (202) located below the stainless steel filter plate (201); the left end of the drainage pipe (202) is connected and fixed with a drainage hose.

8. The thermal power plant boiler slag recovery device according to claim 1, characterized in that: The top of the water tank (4) is connected and fixed with a water supply pipe.

9. A thermal power plant boiler slag recovery device according to claim 3, characterized in that: The left side of the rectangular box (305) is provided with a rectangular guide hole which is slidably mounted on the outer side of the rectangular inner tube (308), and the left inner wall of the rectangular box (305) is provided with a rectangular through hole which is slidably mounted on the outer side of the baffle (307).

10. The thermal power plant boiler slag recovery device according to claim 1, characterized in that: The right side of the processing box (2) is also provided with a top support compression self-opening mechanism (6) matched with the discharge hole (204), and the top support compression self-opening mechanism (6) comprises a fixed plate fixedly connected to the right side of the processing box (2) by four bolts, the right side of the fixed plate is fixedly connected with an L-shaped guide plate (601), the right side of the L-shaped guide plate (601) is arranged in an arc structure, a movable plate (602) is slidably sleeved on the L-shaped guide plate (601), the left side of the movable plate (602) is fixedly connected with a pressure sensor (603), and the left side of the pressure sensor (603) is fixedly connected with a pressure sensor (603) that is in active contact with the right side of the processing box (2) and in contact with the pressure sensor (603). A baffle plate (604) is adapted to the discharge hole (204), the right side of the baffle plate (604) is rectangular and fixedly connected with four T-shaped guide rods (605), the movable plate (602) is slidably sleeved on the four T-shaped guide rods (605), an electric telescopic rod (607) is fixedly installed on the top of the right side of the fixed plate, an L-shaped connecting rod (606) is fixedly connected between the extended end of the electric telescopic rod (607) and the top of the movable plate (602), the top of the electric telescopic rod (607) is fixed and electrically connected with a PLC controller (608), and the pressure sensor (603) is electrically connected to the PLC controller (608).

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