Slag ship of slag salvaging machine

Abstract

The slag ship of the slag salvaging machine comprises a tank body, the bottom of the tank body communicates with a vertically-arranged monitoring cylinder through a horizontally-arranged communicating pipe, and a liquid level meter is arranged in the monitoring cylinder; the tank body is also connected with a water replenishing tank through a liquid replenishing pump; the liquid level meter and the liquid replenishing pump are electrically connected with the controller respectively; the communicating pipe is further connected with the dredging pipe, and the communicating pipe and the dredging pipe are collinearly arranged; the dredging pipe is also connected with the reservoir through the cleaning pump; the dredging pipe is further provided with an electromagnetic valve and a flow meter, the flow meter is arranged on the side, away from the communicating pipe, of the electromagnetic valve, and the cleaning pump, the electromagnetic valve and the flow meter are electrically connected with the controller. And safety accidents caused by inaccurate monitored water level are avoided.

Description

Technical Field

[0001] The present application relates to the technical field of slag treatment, and in particular to a slag scooping machine and slag ship. Background Art

[0002] Thermal power generation is a power generation method that uses the heat energy generated by the combustion of combustibles and converts it into electrical energy through a power generation device. It is the main power generation method in my country. As one of the three main equipment of thermal power plants, power plant boilers play a vital role in thermal power generation. my country's energy characteristics of more coal and less oil determine that the main source of fuel for thermal power generation in my country is coal. In actual use, coal and other materials need to be crushed into suitable coal particles, that is, coal powder, through a coal mill so that the coal can be fully burned in the furnace of the boiler. Since the coal particles contain not only carbon elements that can be burned as fuel, but also other incombustible components, these incombustible components form slag after the coal powder is burned. In order to ensure the smooth operation of the boiler, slag needs to be discharged regularly. The traditional way is to discharge the hot slag in the boiler into the trough of the slag boat filled with water, and use water to cool the slag. During the water quenching and cooling process, large pieces of slag will be broken into small pieces for easy handling. At the same time, a slag boat matching the slag boat is set up to salvage the slag after water quenching and discharge it into the corresponding processing bin for treatment.

[0003] Since the slag carries high temperature, the water in the slag boat of the slag dredger will evaporate and be lost after contact with water, causing the water level in the tank to drop. This requires timely replenishment of water to the tank to ensure smooth operation of the equipment. Therefore, a liquid level gauge is required to monitor the liquid level in the tank in real time so that water can be replenished in the tank in time. The existing monitoring method is to use the principle of a communicating vessel to set up a bypass monitoring tube on the side of the tank, and monitor the liquid level in the tank by monitoring the height of the liquid level in the bypass monitoring tube. However, since the slag is the residue after the combustion of coal powder, its particle size is small, and it is very easy to block the connecting pipe between the bypass monitoring tube and the tank, resulting in inaccurate monitoring of the water level and causing safety problems. Utility Model Content

[0004] The present application provides a slag dredger and a slag barge, which is used to solve the problem that the connecting pipe between the bypass monitoring tube and the slag dredger and the slag barge is blocked by slag, resulting in inaccurate monitored water level and causing safety accidents.

[0005] The present application provides a slag dredger and slag ship, comprising a tank body, the bottom of which is connected to a vertically arranged monitoring tube through a horizontally arranged connecting pipe, and a liquid level gauge is arranged in the monitoring tube;

[0006] The tank is also connected to the water replenishment tank through a replenishment pump.

[0007] The liquid level meter and the liquid replenishing pump are electrically connected to the controller respectively;

[0008] The connecting pipe is also connected to the dredging pipe, and the connecting pipe and the dredging pipe are arranged in the same line;

[0009] The dredging pipe is also connected to the water reservoir through a cleaning pump;

[0010] A solenoid valve and a flow meter are also provided on the dredging pipe. The flow meter is arranged on a side of the solenoid valve away from the connecting pipe. The cleaning pump, the solenoid valve and the flow meter are electrically connected to the controller respectively.

[0011] Optionally, a first manual valve and a second manual valve are respectively provided on the dredging pipe, and the solenoid valve and the flow meter are provided between the first manual valve and the second manual valve.

[0012] Optionally, the lower bottom surface of the connecting pipe is inclined downward from one end connected to the dredging pipe to one end connected to the trough body.

[0013] Optionally, the tank body is divided into a slag scooping area, a slag receiving area and a circulation area in sequence by a first partition and a second partition;

[0014] The upper end of the first partition is flush with the upper surface of the tank body, and the lower end is close to the bottom of the tank body;

[0015] The upper end of the second partition is flush with the upper surface of the tank body, and the lower end is fixedly connected to the bottom of the tank body;

[0016] An overflow pipe is arranged on the upper part of the second partition plate to connect the slag receiving area and the circulation area.

[0017] Optionally, an isolation cover is provided on the slag receiving area, and the top of the isolation cover is connected to the slag discharge port of the boiler;

[0018] The isolation cover is connected to the steam extraction pump through a steam extraction pipe, and the output end of the steam extraction pump is also connected to the heat pump.

[0019] Optionally, the steam extraction pipe passes through the isolation cover and extends into the isolation cover and is connected with a bent pipe with an inlet facing downward, and a filter screen is arranged in the bent pipe.

[0020] Optionally, a spray pipe is provided in the upper part of the isolation cover, and the spray pipe is connected to the circulation area through a circulation pump.

[0021] The slag dredger of the present application is equipped with a dredging pipe co-lined with the connecting pipe, and the dredging pipe is connected to a water replenishment tank through a cleaning pump. The cleaning pump is used to pump water in the water replenishment tank into the dredging pipe, and the connecting pipe is flushed by water flow to achieve dredging of the connecting pipe. The slag dredger of the present application overcomes the disadvantage that the connecting pipeline between the bypass monitoring tube and the slag dredger is blocked by slag, resulting in inaccurate monitored water level and causing safety accidents through the coordinated use of the above-mentioned equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 A schematic diagram of a slag dredger and slag ship provided in one embodiment of the present application;

[0024] Figure 2 A schematic diagram of a slag dredger and slag ship provided in another embodiment of the present application;

[0025] Figure 3 A schematic diagram of the internal front view structure of a tank body provided in one embodiment of the present application;

[0026] Figure 4 A schematic diagram of the three-dimensional structure of a tank body provided in one embodiment of the present application;

[0027] Figure 5 A schematic diagram of a slag dredger and slag ship provided in yet another embodiment of the present application;

[0028] Figure 6 A schematic side view of a tank body provided in one embodiment of the present application.

[0029] Description of reference numerals:

[0030] 1. Tank body; 2. Connecting pipe; 3. Monitoring tube; 4. Controller; 5. Clearing pipe; 6. Heat pump; 11. Liquid replenishing pump; 12. Water replenishing tank; 13. First partition; 14. Second partition; 15. Isolation cover; 16. Steam extraction pump; 17. Spray pipe; 18. Circulation pump; 31. Liquid level meter; 51. Cleaning pump; 52. Water reservoir; 53. Flow meter; 100. Solenoid valve; 141. Overflow pipe; 151. Filter; 200. First manual valve; 300. Second manual valve. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application is clearly and completely described below. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work also fall within the scope of protection of the present application.

[0032] like Figure 1As shown, the present application provides a slag dredger, comprising a tank body 1, the bottom of which is connected to a vertically arranged monitoring tube 3 through a horizontally arranged connecting pipe 2, and a liquid level meter 31 is arranged in the monitoring tube 3;

[0033] The tank body 1 is also connected to the water replenishment tank 12 through the liquid replenishment pump 11.

[0034] The liquid level meter 31 and the liquid replenishing pump 11 are electrically connected to the controller 4 respectively;

[0035] The connecting pipe 2 is also connected to the dredging pipe 5, and the connecting pipe 2 and the dredging pipe 5 are arranged in the same line;

[0036] The dredging pipe 5 is also connected to the water reservoir 52 via a cleaning pump 51;

[0037] The dredging pipe 5 is also provided with a solenoid valve 100 and a flow meter 53 . The flow meter 53 is arranged on a side of the solenoid valve 100 away from the connecting pipe 2 . The cleaning pump 51 , the solenoid valve 100 and the flow meter 53 are electrically connected to the controller 4 respectively.

[0038] The slag boat of the slag scoop machine of the present application is used in combination with the slag scoop machine. When in use, when the boiler is discharging slag, the slag with residual temperature falls into the cooling water in the slag receiving area of ​​the trough body 1. When the slag comes into contact with the cooling water, due to the high temperature, the cooling water on the surface will be heated and evaporated to form steam. The steam has a certain temperature (60-80°C) and the heat therein can be collected and utilized.

[0039] At the same time, the liquid level gauge 31 in the monitoring tube 3 monitors the water level height in the tank body 1 in real time, and transmits the measured data to the controller 4 in real time. When the water in the tank body 1 decreases due to evaporation into steam, the liquid level gauge 31 feeds back the monitored liquid level data to the controller 4. When the liquid level drops to a preset low level, the controller 4 controls the liquid replenishment pump 11 to start and transfer the clean water in the water replenishment tank 12 into the tank body 1 to a preset high liquid level.

[0040] Since the slag is fine, it is inevitable that part of the slag will enter the connecting pipe 2 and deposit when the tank body 1 works for a long time. In order to prevent the connecting pipe 2 from being blocked, the connecting pipe 2 should be regularly unblocked through the unblocking pipe 5. When unblocking, the cleaning pump 51 is controlled by the controller 4 to start, and the water in the water reservoir 52 is supplied to the unblocking pipe 5 through the cleaning pump 51. Then, the solenoid valve 100 is controlled by the controller 4 to start, and the water flow from the unblocking pipe 5 is used to flush the connecting pipe 2. At the same time, the flow meter 53 monitors the water flow and feeds the data back to the controller 4. The controller 4 controls the opening of the solenoid valve 100 according to the water flow, thereby controlling the amount of water flushed out.

[0041] The slag dredger of the present application is equipped with a dredging pipe 5 which is co-linear with the connecting pipe 2, and the dredging pipe 5 is connected to the water replenishment tank 12 via a cleaning pump 51. The cleaning pump 51 is used to pump water in the water replenishment tank 12 into the dredging pipe 5, and the connecting pipe 2 is flushed by water flow to achieve dredging of the connecting pipe 2. The slag dredger of the present application overcomes the disadvantage that the connecting pipe 2 between the monitoring tube 3 and the slag dredger is blocked by slag, resulting in inaccurate monitored water level and causing safety accidents through the coordinated use of the above-mentioned equipment.

[0042] like Figure 2 As shown, optionally, a first manual valve 200 and a second manual valve 300 are respectively provided on the dredging pipe 5, and the solenoid valve 100 and the flow meter 53 are provided between the first manual valve 200 and the second manual valve 300.

[0043] In the present application, when the solenoid valve 100 or the flow meter 53 needs to be repaired, the first manual valve 200 and the second manual valve 300 can be closed to perform maintenance and repair on the solenoid valve 100 or the flow meter 53 .

[0044] like Figure 2 As shown, optionally, the lower bottom surface of the connecting pipe 2 is inclined downward from one end connected to the dredging pipe 5 to one end connected to the tank body 1 .

[0045] In the present application, since the slag is fine, some of the slag will inevitably enter the connecting pipe 2 and be deposited when the trough body 1 works for a long time. In the present application, the lower bottom surface of the connecting pipe 2 is inclined downward from one end connected to the dredging pipe 5 to the end connected to the trough body 1, so that the slag can fall into the trough body 1 through this inclined surface, reducing the probability of the connecting pipe 2 being blocked.

[0046] like Figure 3 and Figure 4 As shown, optionally, the tank body 1 is divided into a slag scooping area, a slag receiving area and a circulation area in sequence by a first partition 13 and a second partition 14;

[0047] The upper end of the first partition 13 is flush with the upper surface of the tank body 1, and the lower end is close to the bottom of the tank body 1;

[0048] The upper end of the second partition plate 14 is flush with the upper surface of the tank body 1, and the lower end is fixedly connected to the bottom of the tank body 1;

[0049] An overflow pipe 141 is provided on the upper portion of the second partition plate 14 for connecting the slag receiving area and the circulation area.

[0050] In the present application, when in use, the connecting pipe 2 is connected to the tank body of the slag receiving area or the slag scooping area. Since the slag falling into the tank body 1 will cause the liquid level in the tank body 1 to rise, when the rising liquid level submerges the overflow pipe 141, the upper water will flow into the circulation area of ​​the tank body 1 through the overflow pipe 141 to prevent the slag from causing the liquid level in the tank body 1 to rise abnormally.

[0051] like Figure 4 and Figure 5 As shown, optionally, an isolation cover 15 is provided on the slag receiving area, and the top of the isolation cover 15 is connected to the slag discharge port of the boiler;

[0052] The isolation cover 15 is connected to the steam extraction pump 16 through a steam extraction pipe, and the output end of the steam extraction pump 16 is also connected to the heat pump 6 .

[0053] When in use, the isolation cover 15 is connected to the slag discharge port of the boiler, and a certain amount of cooling water is contained in the tank body 1. When the boiler is discharging slag, the slag with residual temperature falls into the cooling water in the slag receiving area. When the slag contacts the cooling water, the cooling water on the surface will be heated and evaporated to form steam due to the high temperature. The steam has a certain temperature (60-80°C). At the same time, the steam extraction pump 16 is turned on to extract the steam formed by the cooling water from the isolation cover 15, and then input it into the heat pump 6, so as to convert the low-grade heat of the steam into high-grade heat for heating other equipment in the factory.

[0054] like Figure 6 As shown, optionally, the steam extraction pipe passes through the isolation cover 15 and extends into the isolation cover 15 and is connected with a bend pipe with an inlet facing downward, and a filter screen 151 is arranged in the bend pipe.

[0055] In the present application, since the ash in the slag will also be mixed into the steam when the cooling water forms steam, causing pollution to the steam, a filter net 151 is arranged in the bent pipe connected to the steam extraction pipe to intercept the ash in the steam to ensure that the extracted steam is clean, thereby avoiding damage to the steam extraction pump 16 by dust.

[0056] like Figure 4 and Figure 6 As shown, optionally, a spray pipe 17 is provided in the upper part of the isolation cover 15 , and the spray pipe 17 is connected to the circulation area through a circulation pump 18 .

[0057] When in use, the liquid level gauge 31 in the monitoring tube 3 monitors the water level in the tank body 1 in real time, and transmits the measured data to the controller 4 in real time. When the slag falls into the tank body 1, it will cause the liquid level in the tank body 1 to rise. When the rising liquid level submerges the overflow pipe 141, the upper water will flow into the circulation area of ​​the tank body 1 through the overflow pipe 141. Since the supernatant liquid flows into the circulation area, the solid impurities such as slag can be reduced from entering the circulation area. At the same time, the circulation pump 18 is turned on to transfer the liquid in the circulation area through the pipeline to the spray pipe 17 in the isolation cover 15, so as to spray and cool the slag falling into the slag receiving area, and at the same time, it can also play a role in dust reduction.

[0058] A slag dredger and slag boat, the use process of which is as follows:

[0059] The slag boat of the slag scooping machine of the present application is used in combination with the slag scooping machine. When in use, the isolation cover 15 is connected to the slag discharge port of the boiler, and a certain amount of cooling water is contained in the tank body 1. When the boiler is slag-discharging, the slag with residual temperature falls into the cooling water in the slag receiving area. When the slag contacts the cooling water, due to the high temperature, the cooling water on the surface will be heated and evaporated to form steam. The steam has a certain temperature (60-80°C). At the same time, the steam extraction pump 16 is turned on to extract the steam formed by the cooling water from the isolation cover 15. When the cooling water forms steam, the ash in the slag will also be mixed into the steam, causing pollution to the steam. Therefore, a filter 151 is arranged in the elbow connected to the steam extraction pipe to intercept the ash in the steam to ensure that the extracted steam is clean, thereby avoiding dust damage to the steam extraction pump 16. The steam extraction pump 16 extracts the steam from the isolation cover 15 and then transmits it to the heat pump 6, converting the low-grade heat of the steam into high-grade heat for use in other heat-using equipment in the factory. The slag that falls into the slag receiving area sinks to the bottom of the trough after cooling. The bottom of the trough body 1 in the slag receiving area of ​​the present application is inclined, and the inclination direction is downward from the position close to the second partition 14 to the direction of the first partition 13, so that the slag at the bottom of the trough body 1 in the slag receiving area will flow to the slag scooping area and be scooped out by the slag scooping machine for centralized treatment.

[0060] At the same time, the liquid level meter 31 in the monitoring tube 3 monitors the water level in the tank body 1 in real time, and transmits the measured data to the controller 4 in real time. Since the slag falling into the tank body 1 will cause the liquid level in the tank body 1 to rise, when the rising liquid level is over the overflow pipe 141, the upper water will flow into the circulation area of ​​the tank body 1 through the overflow pipe 141. Since the supernatant liquid flows into the circulation area, the solid impurities such as slag entering the circulation area are reduced. At the same time, the circulation pump 18 is turned on to transfer the liquid in the circulation area to the spray pipe 17 in the isolation cover 15 through the pipeline, and the slag falling into the slag receiving area is sprayed to cool down, and it can also play a role in dust reduction. When the water in the tank body 1 is reduced due to evaporation into steam, the liquid level meter 31 feeds back the monitored liquid level data to the controller 4. When the liquid level drops to the preset low level, the controller 4 controls the liquid replenishment pump 11 to start and transfer the clean water in the water replenishment tank 12 into the tank body 1 to the preset high level.

[0061] Since the slag is small, it is inevitable that part of the slag will enter the connecting pipe 2 and deposit when the tank body 1 works for a long time. In the present application, the bottom surface of the connecting pipe 2 is tilted downward from the end connected to the dredging pipe 5 to the end connected to the tank body 1, so that the slag can fall into the tank body 1 through this tilted surface, reducing the probability of the connecting pipe 2 being blocked. In order to avoid the connecting pipe 2 being blocked, the connecting pipe 2 should be regularly dredged through the dredging pipe 5. During normal operation, the first manual valve 200 and the second manual valve 300 are opened, and the cleaning pump 51 is controlled by the controller 4 to open to supply the water in the water reservoir 52 into the dredging pipe 5 through the cleaning pump 51. Then, the solenoid valve 100 is controlled by the controller 4 to open, and the connecting pipe 2 is flushed with the water flow flushed out of the dredging pipe 5. At the same time, the flow meter 53 monitors the water flow size and feeds the data back to the controller 4. The controller 4 controls the opening of the solenoid valve 100 according to the water flow size, thereby controlling the amount of water flushed out.

[0062] When the solenoid valve 100 or the flow meter 53 needs to be repaired, the first manual valve 200 and the second manual valve 300 can be closed to perform maintenance and repair on the solenoid valve 100 or the flow meter 53 .

[0063] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, ordinary technicians in the field should understand that they can still modify the technical solutions recorded in the aforementioned 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 application.

Claims

1. A slag dredger and slag ship, comprising a tank body (1), characterized in that: The bottom of the tank body (1) is connected to a vertically arranged monitoring tube (3) through a horizontally arranged connecting pipe (2), and a liquid level meter (31) is arranged in the monitoring tube (3); The tank body (1) is also connected to a water replenishment tank (12) via a liquid replenishment pump (11). The liquid level meter (31) and the liquid replenishing pump (11) are electrically connected to the controller (4) respectively; The connecting pipe (2) is also connected to the dredging pipe (5), and the connecting pipe (2) and the dredging pipe (5) are arranged in the same line; The dredging pipe (5) is also connected to a water reservoir (52) via a cleaning pump (51); The dredging pipe (5) is also provided with a solenoid valve (100) and a flow meter (53). The flow meter (53) is arranged on a side of the solenoid valve (100) away from the connecting pipe (2). The cleaning pump (51), the solenoid valve (100) and the flow meter (53) are respectively electrically connected to the controller (4).

2. The slag dredger according to claim 1, characterized in that: The dredging pipe (5) is also provided with a first manual valve (200) and a second manual valve (300), respectively. The solenoid valve (100) and the flow meter (53) are provided between the first manual valve (200) and the second manual valve (300).

3. The slag dredger ship according to claim 1, characterized in that: The bottom surface of the connecting pipe (2) is inclined downward from one end connected to the dredging pipe (5) to one end connected to the tank body (1).

4. The slag dredger according to any one of claims 1 to 3, characterized in that: The tank body (1) is divided into a slag collecting area, a slag receiving area and a circulation area in sequence by a first partition plate (13) and a second partition plate (14); The upper end of the first partition plate (13) is flush with the upper surface of the tank body (1), and the lower end is close to the bottom of the tank body (1); The upper end of the second partition plate (14) is flush with the upper surface of the tank body (1), and the lower end is fixedly connected to the bottom of the tank body (1); An overflow pipe (141) is provided on the upper part of the second partition plate (14) for connecting the slag receiving area and the circulation area.

5. The slag dredger ship according to claim 4, characterized in that: An isolation cover (15) is provided on the slag receiving area, and the top of the isolation cover (15) is connected to the slag discharge port of the boiler; The isolation cover (15) is connected to a steam extraction pump (16) via a steam extraction pipe, and the output end of the steam extraction pump (16) is also connected to a heat pump (6).

6. The slag dredger ship according to claim 5, characterized in that: The steam extraction pipe passes through the isolation cover (15) and extends into the isolation cover (15) and is connected to a bent pipe with an inlet facing downward, and a filter screen (151) is arranged in the bent pipe.

7. The slag dredger and slag ship according to claim 5 or 6, characterized in that: A spray pipe is provided in the upper inner part of the isolation cover (15), and the spray pipe (17) is connected to the circulation area through a circulation pump (18).

Images