A slag conveyor for thermal power generation

Abstract

The utility model relates to a slag conveyor technical field, concretely relates to a slag conveyor for thermal power generation. Including ash pool, the inside of ash pool is provided with the inclined plate, the both sides of inclined plate are provided with the transmission belt, and a plurality of scrapers are fixedly connected with array between two transmission belts, and the upper side of partial scraper and inclined plate is in sliding contact, the position of inside of inclined plate close to the top is provided with the cavity, the bottom of cavity is provided with the air outlet groove, when transmission belt drives a plurality of scrapers to run, a plurality of scrapers circulate through the below of air outlet groove, and a plurality of leakage holes are seted up on the inclined plate. The utility model discloses when the scraper with the ash adhered on the surface passes through the below of air outlet groove, makes the three -way pipe to inhale high -pressure air into the cavity inside, and high -pressure air forms the high -speed airflow when discharging the cavity through the air outlet groove, and the ash adhered on the surface of scraper is blown away by high -speed airflow, thereby preventing the scraper from carrying partial ash to the inside of ash pool, and the slag efficiency of slag conveyor is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a slag conveyor technology field, concretely relates to a slag conveyor for thermal power generation. BACKGROUND

[0002] The slag conveyor is the main equipment of the mechanical slag discharge of the thermal power plant, is installed at the slag outlet of the hearth, and the slag falls into the upper water tank of the slag conveyor through the slag well, the ash slag is cooled and cracked and deposited at the tank bottom, is gradually lifted along with the movement of the conveying scraper, and is discharged at the end of the slag conveyor after most of the cooling water is drained, is supplied to the belt conveying, the hydraulic conveying or the machine outside transportation.

[0003] The utility model with the publication number CN215831948U provides a slag conveyor for thermal power generation, is equipped with the scraper assembly at one end of the ash slag tank, is equipped with the slag assembly at the other end of the ash slag tank, the scraper assembly moves to the slag assembly direction to be able to push the ash slag at the ash slag tank bottom to the position of the slag assembly, is convenient for discharging the ash slag at the ash slag tank bottom.

[0004] However, in the above-mentioned patent, part of the ash slag will adhere to the surface of the transmission belt and the slag plate and rotate to the inside of the ash slag tank after the transmission belt and the slag plate transport the ash slag to the inside of the storage box, which reduces the slagging efficiency of the slag conveyor. At the same time, the transmission belt is provided with a plurality of flow guide holes for draining water, and part of the ash slag will block the flow guide holes when the transmission belt is conveying the ash slag, which reduces the draining efficiency of the flow guide holes. In view of this, we propose a slag conveyor for thermal power generation. SUMMARY

[0005] The utility model aims at providing a slag conveyor for thermal power generation to solve the problems in the above-mentioned background technology.

[0006] To achieve the above object, the utility model provides a kind of slag conveyor for thermal power generation, including ash pool, the inside of ash pool is provided with inclined plate, the both sides of inclined plate are provided with transmission belt, several scrapers are fixedly connected with array between two transmission belts, part of scraper and the upper side of inclined plate sliding contact, the position of the inside of inclined plate close to top is provided with cavity, the bottom of cavity is provided with air outlet groove, when transmission belt drives several scrapers to operate, several scrapers circulate through the below of air outlet groove, several leakage holes are arranged on the inclined plate, and the lower side of inclined plate is fixedly connected with fairing, the fairing is arranged below several leakage holes, several water drainage grooves are horizontally arranged on the side of fairing close to bottom, and the fairing is provided with the plugging mechanism for plugging water drainage groove, one side of ash pool is fixedly connected with three-way pipe, the two ends of three-way pipe away from each other are extended to the inside of fairing and cavity respectively, the three-way pipe is provided with air exchange mechanism, and the air exchange mechanism is used to switch three-way pipe and fairing, three-way pipe and cavity communication, when air exchange mechanism switches three-way pipe to be communicated with fairing, the air exchange mechanism drives plugging mechanism to move horizontally, so that plugging mechanism plugs water drainage groove.

[0007] As a further improvement of the technical solution, the inside of the ash pool is rotatably provided with two rotating rollers, one end of one of the rotating rollers is provided with a motor for driving the rotating roller to rotate, both ends of the rotating roller are fixedly connected with belt pulleys, the transmission belt is drivingly arranged on the same side of the two belt pulleys, and the two rotating rollers are rotatably arranged at both ends of the inclined plate. The inclined plate is an n-shaped structure arranged obliquely.

[0008] As a further improvement of the technical solution, the three-way pipe is a T-shaped pipe, two communication boxes are fixedly connected to the horizontal pipe, the two communication boxes are arranged on both sides of the vertical pipe respectively, and the air exchange mechanism includes an electric telescopic rod fixedly installed on one side of the ash pool. One end of the movable rod of the electric telescopic rod is fixedly connected with an end plate, the side of the end plate away from the electric telescopic rod is fixedly connected with a first sliding block and a second sliding block, and the first sliding block and the second sliding block are slidingly arranged in the interiors of the two communication boxes respectively.

[0009] As a further improvement of the technical solution, the first sliding block and the second sliding block are both provided with through holes, the through holes on the first sliding block and the second sliding block are not on the same axis, when the end plate drives the first sliding block and the second sliding block to move horizontally, one of the through holes is communicated with the interior of the three-way pipe, and the other through hole is not communicated with the three-way pipe.

[0010] As a further improvement of the technical solution, the fairing is provided with a movable groove on one side, and a plurality of water drainage grooves are in communication with the inside of the movable groove.

[0011] As a further improvement of the technical solution, when the through hole on the first sliding block is in communication with the inside of the tee pipe, the plurality of matching grooves and the plurality of water drainage grooves are in communication one by one, and when the through hole on the second sliding block is in communication with the inside of the tee pipe, the plurality of matching grooves and the plurality of water drainage grooves are distributed in a staggered manner, and the blocking plate blocks the plurality of water drainage grooves.

[0012] Compared with the prior art, the utility model has the advantages of:

[0013] 1. The fire power generation is used the salvaging machine, when the scraper that surface adheres has cinder passes through the below of air outlet groove, makes the tee pipe to the high pressure air that goes into the inside of cavity, the high pressure air is formed high -speed airflow when discharging the cavity through the air outlet groove, high -speed airflow blows away the cinder that adheres on the scraper surface, so this prevents the scraper from carrying part cinder to the inside of cinder pool, improves the salvaging efficiency of salvaging machine.

[0014] 2. The fire power generation is used the salvaging machine, when the worker passes through the air exchange mechanism and makes the tee pipe with the inside of fairing communication, the blocking plate synchronously blocks a plurality of water drainage grooves, and then makes the tee pipe into the high pressure air in the inside of fairing, makes the high pressure air pass through a plurality of leakages and discharges at high speed, and the cinder adhering to the inner wall of the leakage is washed out when the high-speed airflow flows in the leakage, so that the leakage is cleaned quickly, and the efficiency of the leakage in filtering the water in the cinder is prevented from being reduced. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the whole structure schematic view of the utility model;

[0016] Figure 2 It is the sectional view of the whole structure of the utility model;

[0017] Figure 3 It is the explosion drawing of part structure of the utility model;

[0018] Figure 4 It is the structure schematic view of the air exchange mechanism and the blocking mechanism of the utility model;

[0019] Figure 5 It is the sectional view of the air exchange mechanism of the utility model;

[0020] Figure 6 It is the explosion drawing of the blocking mechanism of the utility model.

[0021] The meanings of the various reference signs in the drawings are as follows:

[0022] 1. ash pool;

[0023] 2. rotating roller; 21. pulley; 22. transmission belt; 23. scraper; 24. motor;

[0024] 3. inclined plate; 31. leakage hole; 32. cavity; 33. air outlet groove;

[0025] 4. fairing; 41. movable slot; 42. water drainage groove;

[0026] 5. three-way pipe; 51. communication box;

[0027] 6. air exchange mechanism; 61. electric telescopic rod; 62. end plate; 63. first sliding block; 64. second sliding block; 65. through hole;

[0028] 7. plugging mechanism; 71. plugging plate; 72. matching slot; 73. connecting plate. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application. EMBODIMENT

[0030] Please refer to Figures 1-6The purpose of the present embodiment is to provide a slag machine for thermal power generation, which includes an ash pool 1, water is accumulated in the inside of the ash pool 1, after the ash in the boiler falls from top to bottom into the inside of the ash pool 1, the ash settles at the bottom of the inside of the ash pool 1, and the water floats above the ash, thereby preventing a large amount of dust from being generated when the boiler is discharged, a slope plate 3 is arranged in the inside of the ash pool 1, the slope plate 3 is an n-shaped structure arranged obliquely, one end of the slope plate 3 located below is immersed in the water in the inside of the ash pool 1, one end of the slope plate 3 located above is located outside the ash pool 1, drive belts 22 are arranged on both sides of the slope plate 3, a plurality of scrapers 23 are fixedly connected in an array between the two drive belts 22, part of the scrapers 23 are in sliding contact with the upper side of the slope plate 3, the lowest scraper 23 is in sliding contact with the bottom surface in the inside of the ash pool 1, two rotating rollers 2 are rotatably arranged in the inside of the ash pool 1, one end of one of the rotating rollers 2 is provided with a motor 24 for driving the rotating roller 2 to rotate, belt pulleys 21 are fixedly connected to both ends of the rotating roller 2, the drive belts 22 are drivingly arranged on the same side of the two belt pulleys 21, the two rotating rollers 2 are rotatably arranged at both ends of the slope plate 3, the motor 24 drives one of the rotating rollers 2 to rotate after being started, the rotating roller 2 drives the two belt pulleys 21 to rotate, the two belt pulleys 21 respectively drive the two drive belts 22 to operate, the two drive belts 22 in operation drive the plurality of scrapers 23 to rotate, the plurality of rotating scrapers 23 lift the ash in the inside of the ash pool 1 to the slope plate 3, and convey the ash upward along the slope surface of the slope plate 3, a plurality of leakage holes 31 are arranged on the slope plate 3, when the ash passes above the plurality of leakage holes 31, the water in the ash flows back to the inside of the ash pool 1 through the leakage holes 31, when the slope plate 3 pushes the ash from the highest point of the slope plate 3, the ash after filtering out the water falls to the collecting box pre-placed on one side of the ash pool 1 under the action of gravity, in order to facilitate the ash being driven by the scraper 23, the bottom surface in the inside of the ash pool 1 is arranged obliquely, wherein the low end in the inside of the ash pool 1 is close to the slope plate 3, the ash in the inside of the ash pool 1 slowly slides along the slope surface and approaches the slope plate 3, so that the plurality of slope plates 3 can continuously collect and convey the ash in the inside of the ash pool 1, thereby realizing the rapid collection of the ash in the inside of the ash pool 1.

[0031] Since the wet ash is easy to adhere to the surface of the scraper 23, part of the ash adhered to the surface of the scraper 23 will follow the rotating scraper 23 to enter the inside of the ash pool 1 again after the scraper 23 pushes the ash to the inside of the collecting box, which causes the efficiency of the scraper 23 to decrease. In order to solve this problem, the cavity 32 is arranged at the position [1] near the top end of the inclined plate 3, and the bottom of the cavity 32 is provided with the air outlet groove 33. When the transmission belt 22 drives the plurality of scrapers 23 to rotate, the plurality of scrapers 23 circulate below the air outlet groove 33. Meanwhile, the three-way pipe 5 is fixedly connected to one side of the ash pool 1, one end of the three-way pipe 5 inside the ash pool 1 extends into the inside of the cavity 32, and the other end of the three-way pipe 5 outside the ash pool 1 is connected with the high-pressure air pump. The high-pressure air pump is controlled by the external electric control equipment, and the electric control equipment controls the high-pressure air pump to intermittently pump high-pressure air into the inside of the three-way pipe 5. When any one of the scrapers 23 is transported to the lower side of the air outlet groove 33, the air compressor pumps high-pressure air into the inside of the three-way pipe 5, the high-pressure air enters the inside of the cavity 32 through the three-way pipe 5, and then the high-pressure air is sprayed downward to the scraper 23 through the air outlet groove 33. The high-speed airflow blows away the ash adhered to the surface of the scraper 23, and the ash blown away by the airflow falls into the inside of the collecting box, so as to prevent the ash adhered to the surface of the scraper 23 from reducing the efficiency of the device.

[0032] When the plurality of leakage holes 31 on the inclined plate 3 filter the water in the ash, part of the ash will adhere to the inner wall of the leakage hole 31, which will cause the leakage hole 31 to be blocked by the ash over a long period of time, reducing the efficiency of the inclined plate 3 in filtering the water in the ash, causing a large amount of water to be lifted to the inside of the collection box, accelerating the water consumption speed of the ash pool 1. In order to solve this problem, the rectifier cover 4 is fixedly connected to the lower side of the inclined plate 3, the rectifier cover 4 is arranged below the plurality of leakage holes 31, and a plurality of drainage grooves 42 are horizontally arrayed on the side of the rectifier cover 4 close to the bottom end. The water in the ash will flow into the inside of the rectifier cover 4 after passing through the leakage hole 31, and then flow downward along the inclined surface of the inner bottom surface of the rectifier cover 4 until it flows back into the water in the ash pool 1 through the drainage groove 42. The rectifier cover 4 is provided with a plugging mechanism 7 for plugging the drainage groove 42. The other end of the three-way pipe 5 extending into the inside of the rectifier cover 4 is provided with an air exchange mechanism 6, which is used to switch the three-way pipe 5 to communicate with the rectifier cover 4 or the cavity 32. When the worker needs to clean the ash adhering to the inner wall of the leakage hole 31, the three-way pipe 5 is switched to communicate with the rectifier cover 4 by the air exchange mechanism 6, and the three-way pipe 5 does not communicate with the inside of the cavity 32. The air exchange mechanism 6 drives the plugging mechanism 7 to move horizontally, so that the plugging mechanism 7 plugs the drainage groove 42. At this time, the high-pressure air pump pumps high-pressure air into the inside of the three-way pipe 5, and then the high-pressure air enters the inside of the rectifier cover 4 through the three-way pipe 5. Then the high-pressure air is discharged at high speed through the plurality of leakage holes 31. The high-speed airflow will flush out the ash adhering to the inner wall of the leakage hole 31 when flowing in the leakage hole 31, realizing the rapid cleaning of the ash on the inner wall of the leakage hole 31, and preventing the efficiency of the leakage hole 31 in filtering the water in the ash from being reduced.

[0033] The structure of the air exchange mechanism 6 is refined as follows: Figure 4 and Figure 5, the three-way pipe 5 is a T-shaped pipe, which is composed of a horizontal pipe and a vertical pipe perpendicular to the horizontal pipe, an external high-pressure air pump is connected to an end of the vertical pipe away from the horizontal pipe, and two communication boxes 51 are fixedly connected to the horizontal pipe, and the two communication boxes 51 are arranged on the two sides of the vertical pipe respectively, the air exchange mechanism 6 comprises an electric telescopic rod 61 fixedly installed on one side of the ash pool 1, an end plate 62 is fixedly connected to one end of an active rod of the electric telescopic rod 61, a first sliding block 63 and a second sliding block 64 are fixedly connected to a side of the end plate 62 away from the electric telescopic rod 61, the first sliding block 63 and the second sliding block 64 are slidably arranged in the two communication boxes 51 respectively, the active rod of the electric telescopic rod 61 drives the end plate 62, the first sliding block 63 and the second sliding block 64 to move synchronously in a horizontal direction when the active rod is retracted or extended, a through hole 65 is formed in each of the first sliding block 63 and the second sliding block 64, the through holes 65 in the first sliding block 63 and the second sliding block 64 are not on the same axis, when the end plate 62 drives the first sliding block 63 and the second sliding block 64 to move in the horizontal direction, one of the through holes 65 is in communication with the inside of the three-way pipe 5, and the other through hole 65 is not in communication with the three-way pipe 5, when the through hole 65 in the first sliding block 63 is in communication with the inside of the three-way pipe 5, the three-way pipe 5 is in communication with the inside of the cavity 32, and the three-way pipe 5 is not in communication with the inside of the fairing 4, when the through hole 65 in the second sliding block 64 is in communication with the inside of the three-way pipe 5, the three-way pipe 5 is in communication with the inside of the fairing 4, so as to switch the communication between the three-way pipe 5 and the fairing 4 and the communication between the three-way pipe 5 and the cavity 32.

[0034] The structure of the sealing mechanism 7 is refined as follows, referring to Figure 6 , a movable groove 41 is formed in one side of the fairing 4, and a plurality of drainage grooves 42 are in communication with the inside of the movable groove 41, the sealing mechanism 7 comprises a sealing plate 71 slidably arranged in the movable groove 41, a plurality of opposite grooves 72 are horizontally arrayed on the sealing plate 71, a connecting plate 73 is fixedly connected to one end of the sealing plate 71, and the other end of the connecting plate 73 is fixedly arranged on the side wall of the active rod of the electric telescopic rod 61, when the through hole 65 in the first sliding block 63 is in communication with the inside of the three-way pipe 5, the plurality of opposite grooves 72 and the plurality of drainage grooves 42 are in communication one by one, at this time, the water in the inside of the fairing 4 can be discharged through the drainage grooves 42, when the through hole 65 in the second sliding block 64 is in communication with the inside of the three-way pipe 5, the active rod of the electric telescopic rod 61 drives the sealing plate 71 to move in the horizontal direction through the connecting plate 73, the plurality of opposite grooves 72 on the sealing plate 71 move synchronously, so that the plurality of opposite grooves 72 and the plurality of drainage grooves 42 are distributed in a staggered manner, and the sealing plate 71 seals the plurality of drainage grooves 42, so as to prevent the high-pressure air in the inside of the fairing 4 from being discharged through the drainage grooves 42 when the worker cleans the inner wall of the leakage hole 31, to ensure that the high-pressure air in the inside of the fairing 4 can be completely discharged through the leakage hole 31, so that the airflow through the inside of the leakage hole 31 has a sufficient flow rate to flush away the ash, and to ensure the cleaning quality of the ash in the inside of the leakage hole 31 by the device.

[0035] In summary, when several scrapers 23 in the conveying process pick up the ash in the ash conveying tank 1, the second sliding block 64 blocks the passage of the airflow through the inside of the fairing 4, the through hole 65 on the first sliding block 63 is in communication with the inside of the three-way pipe 5, and the high-pressure air pump pumps air into the inside of the three-way pipe 5 once for each scraper 23 passing under the air outlet groove 33, so that the airflow blown out of the air outlet groove 33 blows off the ash adhering to the scraper 23, avoiding the return of part of the ash to the inside of the ash conveying tank 1 and reducing the efficiency of the device in picking up the ash. When the worker needs to clean the ash in the leakage hole 31, the movable rod of the electric telescopic rod 61 is elongated to drive the end plate 62, the first sliding block 63 and the second sliding block 64 to move transversely, so that the first sliding block 63 blocks the passage of the airflow to the inside of the cavity 32, the through hole 65 on the second sliding block 64 is in communication with the inside of the three-way pipe 5, the blocking plate 71 blocks the several drainage grooves 42, and then the high-pressure air pump continuously pumps high-pressure air into the inside of the three-way pipe 5, so that the ash adhering to the inner wall of the leakage hole 31 is washed away by the high-speed airflow, achieving the purpose of quickly dredging the leakage hole 31.

[0036] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only preferred examples of the present application and are not intended to limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A slag conveyor for thermal power plants, comprising a slag pool (1), characterized in that: The inside of the ash pool (1) is provided with an inclined plate (3), both sides of the inclined plate (3) are provided with a transmission belt (22), a plurality of scrapers (23) are fixedly connected between the two transmission belts (22), part of the scrapers (23) are in sliding contact with the upper side of the inclined plate (3), a cavity (32) is formed in the inside of the inclined plate (3) close to the top end, an air outlet groove (33) is formed in the bottom of the cavity (32), when the transmission belt (22) drives the plurality of scrapers (23) to operate, the plurality of scrapers (23) circulate below the air outlet groove (33), a plurality of leakage holes (31) are formed in the inclined plate (3), and the lower side of the inclined plate (3) is fixedly connected with a fairing (4), the fairing (4) is arranged below the plurality of leakage holes (31), a plurality of water drainage grooves (42) are horizontally arranged on the side of the fairing (4) close to the bottom end, and the fairing (4) is provided with a blocking mechanism (7) for blocking the water drainage grooves (42), one side of the ash pool (1) is fixedly connected with a three-way pipe (5), the two ends of the three-way pipe (5) away from each other extend into the inside of the fairing (4) and the cavity (32) respectively, the three-way pipe (5) is provided with an air exchange mechanism (6), the air exchange mechanism (6) is used for switching the three-way pipe (5) to be communicated with the fairing (4) and the cavity (32), when the air exchange mechanism (6) switches the three-way pipe (5) to be communicated with the fairing (4), the air exchange mechanism (6) drives the blocking mechanism (7) to move horizontally, so that the blocking mechanism (7) blocks the water drainage grooves (42).

2. The slag conveyer for thermal power plants according to claim 1, characterized in that: The inside of the ash pool (1) is provided with two rotating rollers (2), one end of one of the rotating rollers (2) is provided with a motor (24) for driving the rotating roller (2) to rotate, both ends of the rotating roller (2) are fixedly connected with a belt pulley (21), the transmission belt (22) is drivingly arranged on the same side of the two belt pulleys (21), the two rotating rollers (2) are rotatably arranged at both ends of the inclined plate (3), and the inclined plate (3) is an inclined n-shaped structure.

3. The slag conveyer for thermal power plants according to claim 1, characterized in that: The three-way pipe (5) is a T-shaped pipe, two communication boxes (51) are fixedly connected to the horizontal pipe, the two communication boxes (51) are arranged on the two sides of the vertical pipe respectively, the air exchange mechanism (6) comprises an electric telescopic rod (61) fixedly installed on one side of the ash pool (1), one end of the movable rod of the electric telescopic rod (61) is fixedly connected with an end plate (62), the side of the end plate (62) away from the electric telescopic rod (61) is fixedly connected with a first sliding block (63) and a second sliding block (64), the first sliding block (63) and the second sliding block (64) are slidingly arranged in the interiors of the two communication boxes (51) respectively.

4. The slag conveyer for thermal power plants according to claim 3, characterized in that: The first sliding block (63) and the second sliding block (64) are both provided with through holes (65), the through holes (65) on the first sliding block (63) and the second sliding block (64) are not on the same axis, when the end plate (62) drives the first sliding block (63) and the second sliding block (64) to move horizontally, one of the through holes (65) is communicated with the three-way pipe (5), and the other through hole (65) is not communicated with the three-way pipe (5).

5. The slag conveyer for thermal power plants according to claim 4, characterized in that: The rectifier cover (4) is provided with a movable slot (41) on one side, a plurality of water drainage slots (42) are communicated with the inside of the movable slot (41), the sealing mechanism (7) comprises a sealing plate (71) slidably arranged in the movable slot (41), a plurality of opposing slots (72) are horizontally arranged on the sealing plate (71), and one end of the sealing plate (71) is fixedly connected with a connecting plate (73); one end of the connecting plate (73) is fixedly arranged on the side wall of the movable rod of the electric telescopic rod (61).

6. The slag conveyer for thermal power plants according to claim 5, characterized in that: When the through hole (65) on the first sliding block (63) is communicated with the inside of the three-way pipe (5), the plurality of opposing slots (72) and the plurality of water drainage slots (42) are communicated one by one; when the through hole (65) on the second sliding block (64) is communicated with the inside of the three-way pipe (5), the plurality of opposing slots (72) and the plurality of water drainage slots (42) are distributed in a staggered manner, and the sealing plate (71) seals the plurality of water drainage slots (42).

Images