Mutual backup system of coal gasification slag salvaging machine

Abstract

The utility model provides a coal gasification submerged chain conveyor mutual standby system which comprises a first deslagging pipeline, a second deslagging pipeline and a mutual standby pipeline, the two ends of the first deslagging pipeline are communicated with a first lock hopper and a first submerged chain conveyor, and the two ends of the second deslagging pipeline are communicated with a second lock hopper and a second submerged chain conveyor; the two mutually-prepared pipelines are respectively connected between the first slag discharging pipeline and the second slag salvaging machine and between the second slag discharging pipeline and the first slag salvaging machine; a stop valve and a first valve are arranged on the two sides of the joint of the first deslagging pipeline and the mutual standby pipeline and the two sides of the joint of the second deslagging pipeline and the mutual standby pipeline respectively, and a second valve is arranged on the mutual standby pipeline. According to the utility model, the mutual backup pipeline connected between the two sets of slag discharging devices is arranged, and the lock hopper in each slag discharging device is communicated with the slag salvaging machine of the other slag discharging device, so that mutual backup is realized; therefore, the problems that in the production process, when a slag conveyor in a single slag discharging device breaks down, personal injury is possibly caused by slag discharging, and environmental pollution is caused in the slag discharging and transporting process are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of coal gasification, in particular to a mutual backup system of a coal gasification slag scooping machine. Background Art

[0002] A coal gasification slag remover is a device used to remove slag during the coal gasification process. During the coal gasification process, coal undergoes a high temperature and pressure reaction to produce coal gas and solid slag. The coal gas can be used to produce chemicals, fuel or electricity, while the slag needs to be removed. The main function of a coal gasification slag remover is to remove the slag from the coal gasification reactor. It usually consists of a stirring device and a conveying system. The stirring device is used to mix the slag and coal gas and keep them in a uniform suspension state for better separation of the slag. The conveying system extracts the slag from the reactor and transports it for processing through a pipeline or conveyor belt.

[0003] During the failure of the gasification slag scoop machine, the slag lock bucket enters the accident slag pool through the accident slag discharge pipeline. For example, about 20 cubic meters of water carrying a large amount of coarse slag is discharged into the accident slag pool within 15 seconds. The strong impact force can easily splash onto the human body, causing personal injury. At the same time, toxic and harmful gases such as carbon monoxide and hydrogen sulfide carried in the coarse slag are emitted into the air, which can easily accumulate and cause poisoning. Secondly, the coarse slag discharged into the accident slag pool does not pass through the slag scoop machine and vibrating screen water removal equipment, but is salvaged by a grab bucket and stacked to dry. The stacked coarse slag has a high water content and is easily spilled on the road during vehicle transportation, generating fly ash and dust, causing environmental incidents.

[0004] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the utility model, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content

[0005] In view of the shortcomings of the prior art mentioned above, the utility model provides a mutual backup system for coal gasification slag scoop machines. By arranging a mutual backup pipeline connected between two sets of slag discharge devices, the lock bucket in each slag discharge device is connected to the slag scoop machine of the other slag discharge device, so as to achieve mutual backup and maintain the stability of the slag discharge function, thereby solving the problem of personal injury that may be caused by slag discharge when the slag scoop machine in a single set of slag discharge device fails during the production process and the problem of environmental pollution caused during the slag discharge and transportation.

[0006] The utility model provides a coal gasification slag removal machine mutual backup system, comprising a first slag removal pipeline, a second slag removal pipeline and a mutual backup pipeline, wherein both ends of the first slag removal pipeline are connected with a first lock bucket and a first slag removal machine, and both ends of the second slag removal pipeline are connected with a second lock bucket and a second slag removal machine; the two mutual backup pipelines are respectively connected between the first slag removal pipeline and the second slag removal machine and between the second slag removal pipeline and the first slag removal machine; wherein the first slag removal pipeline and the second slag removal pipeline are respectively provided with a cut-off valve and a first valve on both sides of the connection with the mutual backup pipeline, and the second valve is provided on the mutual backup pipeline.

[0007] In one embodiment of the present invention, the mutual reserve pipeline is provided with a slope, and an end of the mutual reserve pipeline connected to the first slag discharge pipeline or the second slag discharge pipeline is higher than an end connected to the first slag scoop machine or the second slag scoop machine.

[0008] In one embodiment of the utility model, the cut-off valve is installed on one side of the first slag discharge pipeline and the second slag discharge pipeline close to the first lock bucket and the second lock bucket, and the first valve is installed on one side of the first slag discharge pipeline and the second slag discharge pipeline close to the first slag scoop and the second slag scoop.

[0009] In one embodiment of the present invention, the second valve is installed on a side of the mutual backup pipeline close to the first slag discharge pipeline or the second slag discharge pipeline.

[0010] In one embodiment of the present invention, the installation position of the second valve on the mutual backup pipeline is the shortest distance from the first slag discharge pipeline or the second slag discharge pipeline.

[0011] In one embodiment of the present invention, blind plates are installed at the rear sides of the first valve and the second valve along the medium flow direction in the first slag discharge pipeline, the second slag discharge pipeline and the mutual backup pipeline.

[0012] In an embodiment of the present invention, the first valve and the second valve are configured as gate valves.

[0013] In one embodiment of the utility model, a flushing pipeline is also included, which is connected to the mutual pipeline, and the connection point of the flushing pipeline on the mutual pipeline is located on the side of the second valve facing the first slag discharge pipeline or the second slag discharge pipeline.

[0014] In one embodiment of the present invention, a third valve is installed on the flushing pipeline, and the flushing pipeline is connected to the top of the pipeline of the mutual backup pipeline.

[0015] In an embodiment of the present invention, the third valve is configured as a gate valve or a ball valve.

[0016] The beneficial effects of the utility model are as follows: by arranging a mutual backup pipeline connected between two sets of slag discharge devices, the lock bucket in each slag discharge device is connected with the slag scoop machine of the other slag discharge device, so as to achieve mutual backup, maintain the stability of the slag discharge function, avoid personal injury caused by slag discharge when the slag scoop machine fails and avoid environmental pollution caused during the slag discharge transportation process.

[0017] It should be understood that the above general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings herein are incorporated into the specification and constitute a part of the specification, showing embodiments consistent with the present utility model, and together with the specification, are used to explain the principles of the present utility model. Obviously, the drawings described below are only some embodiments of the present utility model, and for those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0019] Figure 1 The utility model is a schematic diagram of the pipeline structure of the mutual backup system of the coal gasification slag scooping machine.

[0020] In the figure: 1. First slag discharge pipeline; 2. Second slag discharge pipeline; 10. First lock bucket; 11. First slag scoop machine; 20. Second lock bucket; 21. Second slag scoop machine; 3. Mutual backup pipeline; 4. Flushing pipeline; 5. Shut-off valve; 6. First valve; 7. Second valve; 8. Third valve; 9. Blind plate. DETAILED DESCRIPTION

[0021] The following describes the implementation of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict. It should also be understood that the terms used in the embodiments of the present invention are intended to describe specific implementations, rather than to limit the scope of protection of the present invention.

[0022] See also Figure 1. It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings in this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the utility model, so they have no substantial technical significance. Any structural modification, change in proportional relationship, or adjustment of size, without affecting the effects and purposes that can be achieved by the utility model, should still fall within the scope of the technical content disclosed by the utility model. At the same time, the terms such as position and quantitative relationship quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the utility model. Changes or adjustments in their relative relationships should also be regarded as the scope of the implementation of the utility model without substantial changes in the technical content.

[0023] See also Figure 1 The utility model provides a coal gasification slag removal machine mutual standby system, comprising a first slag removal pipeline 1, a second slag removal pipeline 2 and a mutual standby pipeline 3, wherein both ends of the first slag removal pipeline 1 are connected with a first lock bucket 10 and a first slag removal machine 11, and both ends of the second slag removal pipeline 2 are connected with a second lock bucket 20 and a second slag removal machine 21; the two mutual standby pipelines 3 are respectively connected between the first slag removal pipeline 1 and the second slag removal machine 21 and between the second slag removal pipeline 2 and the first slag removal machine 11; wherein the first slag removal pipeline 1 and the second slag removal pipeline 2 are respectively provided with a shut-off valve 5 and a first valve 6 on both sides of the connection with the mutual standby pipeline 3, and a second valve 7 is provided on the mutual standby pipeline 3.

[0024] Specifically, in the embodiment of the utility model, for the slag discharge device consisting of two sets of locking buckets and slag scoop machines, a connecting pipeline is added between the two sets of slag discharge devices to connect the slag discharge pipeline of the first set of slag discharge device and the slag scoop machine of the second set of slag discharge device, so that mutual backup is formed between the two sets of slag discharge devices, avoiding the inability of one of the slag scoop machines to process the slag of the corresponding locking bucket during a failure, thereby preventing pollution caused by untreated slag.

[0025] More specifically, the two sets of slag discharge devices respectively include a first lock bucket 10 and a first slag scoop 11 connected at both ends of the first slag discharge pipeline 1, and a second lock bucket 20 and a second slag scoop 21 connected at both ends of the second slag discharge pipeline 2, and a mutual backup pipeline 3 is installed on the first slag discharge pipeline 1 and the second slag discharge pipeline 2 to connect to the first slag scoop 11 and the second slag scoop 21, thereby forming a mutual backup system of two sets of coal gasification slag scoop devices. At the same time, a shut-off valve 5 and a first valve 6 for controlling the on-off of the pipeline are installed on the two sets of slag discharge pipelines (the first slag discharge pipeline 1 and the second slag discharge pipeline 2), so as to cooperate with the second valve 7 installed on the mutual backup pipeline 3 to select the route for the slag to enter the first slag scoop 11 or the second slag scoop 21 from the first lock bucket 10 / the second lock bucket 20 in combination with the operating conditions.

[0026] It should be noted that, for more sets of slag discharge devices, through the scheme described in this embodiment, by connecting the mutual backup pipeline 3 between the slag discharge pipelines and the slag scoop machines of different sets of slag discharge devices, mutual backup of the slag scoop machines is formed between the multiple sets of slag discharge devices, which will not be elaborated here.

[0027] Furthermore, the mutual reserve pipeline 3 is provided with a slope, and one end of the mutual reserve pipeline 3 connected to the first slag discharge pipeline 1 or the second slag discharge pipeline 2 is higher than one end connected to the first slag scoop 11 or the second slag scoop 21 .

[0028] Furthermore, the slope design of the mutual reserve pipeline 3 can promote the flow of the medium in the pipeline, and at the same time, it can also avoid the sediment and solid residue of the medium in the pipeline. In the embodiment of the utility model, by setting the slope of the mutual reserve pipeline 3 downward from the direction of the slag discharge pipeline to the slag scoop machine (i.e., the first slag discharge pipeline 1 to the second slag scoop machine 21 and the second slag discharge pipeline 2 to the first slag scoop machine 11), the medium in the pipeline can flow downward along the pipeline to the corresponding slag scoop machine under the action of gravity, and the slag deposition and clogging of the pipeline during use are prevented.

[0029] See also Figure 1 In one embodiment, the cut-off valve 5 is installed on the first slag discharge pipeline 1 and the second slag discharge pipeline 2 at a side close to the first lock bucket 10 and the second lock bucket 20, and the first valve 6 is installed on the first slag discharge pipeline 1 and the second slag discharge pipeline 2 at a side close to the first slag scoop 11 and the second slag scoop 21. The second valve 7 is installed on the standby pipeline 3 at a side close to the first slag discharge pipeline 1 or the second slag discharge pipeline 2.

[0030] Specifically, in the embodiment of the utility model, after the first lock bucket 10 is connected to the cut-off valve 5 on the first slag discharge pipeline 1, a mutual reserve pipeline 3 to the second slag scoop 21 is set, and a second valve 7 is set on the mutual reserve pipeline 3. A first valve 6 is set on the first slag discharge pipeline 1 at the lower part of the first lock bucket 10. When the first lock bucket 10 discharges slag to the second slag scoop 21, the first valve 6 is closed and the second valve 7 is opened. In this way, when the cut-off valve 5 of the first lock bucket 10 for slag discharge is opened, the slag flows into the second slag scoop 21 through the mutual reserve pipeline 3.

[0031] Furthermore, the installation position of the second valve 7 on the mutual reserve pipeline 3 is the shortest distance from the first slag discharge pipeline 1 or the second slag discharge pipeline 2. In this way, the space formed by the mutual reserve pipeline 3 in front of the second valve 7 is minimized, so that during the operation of the first lock bucket 10 / second lock bucket 20 discharging slag to the first slag scoop 11 / second slag scoop 21, slag accumulation is formed in the mutual reserve pipeline 3 in front of the second valve 7, which leads to blockage when the mutual reserve pipeline 3 is used.

[0032] Furthermore, blind plates 9 are installed behind the first valve 6 and the second valve 7 along the medium flow direction in the first slag discharge pipeline 1, the second slag discharge pipeline 2 and the mutual backup pipeline 3. In this way, during the failure of the first slag scoop 11 or the second slag scoop 21, in order to prevent the slag from flowing into the corresponding slag scoop, the failed slag scoop can be safely repaired. By setting the blind plate 9 behind the first valve 6, the blind plate 9 is reversed during the maintenance to ensure safe isolation.

[0033] In one embodiment, the first valve 6 and the second valve 7 are configured as gate valves, thereby providing a better isolation effect to prevent slag from entering the sealing surface of other types of valves and causing valve failure.

[0034] See also Figure 1 In one embodiment, a flushing pipeline 4 is further included, the flushing pipeline 4 is connected to the mutual pipeline 3, and the connection point of the flushing pipeline 4 on the mutual pipeline 3 is located on the side of the second valve 7 facing the first slag discharge pipeline 1 or the second slag discharge pipeline 2.

[0035] Furthermore, a third valve 8 is installed on the flushing pipeline 4 , and the flushing pipeline 4 is connected to the top end of the mutual backup pipeline 3 .

[0036] Specifically, in the embodiment of the utility model, the third valve 8 installed on the flushing pipeline 4 is used to cooperate with the respective cut-off valves 5, the first valve 6, the second valve 7 and the third valve 8 in the slag discharge pipeline and the mutual reserve pipeline 3 to perform corresponding operation steps. In one embodiment, when the first lock bucket 10 discharges slag to the second slag scoop 21, the first valve 6 is closed, and the second valve 7 and the third valve 8 are opened. The cut-off valve 5 of the first slag discharge pipeline 1 connected to the first lock bucket 10 is opened. At this time, the slag flows to the second slag scoop 21 through the mutual reserve pipeline 3. During this period, the third valve 8 of the flushing pipeline 4 is opened to prevent the slag from being deposited in the mutual reserve pipeline 3 and blocking the pipeline.

[0037] Furthermore, in another embodiment, a third valve 8 of the flushing pipeline 4 is arranged in front of the second valve 7 of the mutual reserve pipeline 3 (the water pressure in the flushing pipeline 4 is set to be greater than 0.5 MPa), and the flushing pipeline 4 is connected to the top of the pipeline of the mutual reserve pipeline 3 to prevent blockage. When blockage occurs, the second valve 7 is closed, and the first valve 6 and the third valve 8 are opened, so that the flushing water of the flushing pipeline 4 flushes the blocked slag into the first slag scoop 11.

[0038] It should be noted that, in another embodiment, slag bridging may occur between the first lock bucket 10 and the second lock bucket 20 during operation. The first valve 6 and the second valve 7 may be closed, and the third valve 8 may be opened to use flushing water to backwash the slag in the lock bucket, thereby eliminating the bridging.

[0039] Furthermore, the third valve 8 is configured as a gate valve or a ball valve, so as to be opened and closed in the flushing pipeline 4 for flushing operations.

[0040] In summary, the utility model provides a coal gasification slag scoop machine mutual backup system, which connects the lock bucket in each slag discharge device with the slag scoop machine of the other slag discharge device by setting a mutual backup pipeline connected between the two sets of slag discharge devices, so as to achieve mutual backup and maintain the stability of the slag discharge function, thereby solving the problems of personal injury that may be caused by slag discharge when the slag scoop machine in a single set of slag discharge device fails during the production process and environmental pollution caused during the slag discharge and transportation process.

[0041] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A coal gasification slag removal machine mutual backup system, characterized in that: include: A first slag discharge pipeline (1) and a second slag discharge pipeline (2), wherein both ends of the first slag discharge pipeline (1) are connected to a first lock bucket (10) and a first slag scooping machine (11), and both ends of the second slag discharge pipeline (2) are connected to a second lock bucket (20) and a second slag scooping machine (21); Mutual backup pipelines (3), wherein the two mutual backup pipelines (3) are respectively connected between the first slag discharge pipeline (1) and the second slag scooping machine (21) and between the second slag discharge pipeline (2) and the first slag scooping machine (11); Wherein, the first slag discharge pipeline (1) and the second slag discharge pipeline (2) are respectively provided with a shut-off valve (5) and a first valve (6) on both sides of the connection with the mutual reserve pipeline (3), and the mutual reserve pipeline (3) is provided with a second valve (7).

2. The system according to claim 1, characterized in that The mutual reserve pipeline (3) is provided with a slope, and one end of the mutual reserve pipeline (3) connected to the first slag discharge pipeline (1) or the second slag discharge pipeline (2) is higher than one end connected to the first slag scooping machine (11) or the second slag scooping machine (21).

3. The system according to claim 1, characterized in that The shut-off valve (5) is installed on one side of the first slag discharge pipeline (1) and the second slag discharge pipeline (2) close to the first lock bucket (10) and the second lock bucket (20), and the first valve (6) is installed on one side of the first slag discharge pipeline (1) and the second slag discharge pipeline (2) close to the first slag scoop (11) and the second slag scoop (21).

4. The system according to claim 1, characterized in that The second valve (7) is installed on a side of the mutual reserve pipeline (3) close to the first slag discharge pipeline (1) or the second slag discharge pipeline (2).

5. The system according to claim 4, characterized in that The installation position of the second valve (7) on the mutual reserve pipeline (3) is at the shortest distance from the first slag discharge pipeline (1) or the second slag discharge pipeline (2).

6. The system according to claim 1, characterized in that Along the flow direction of the medium in the first slag discharge pipeline (1), the second slag discharge pipeline (2) and the mutual reserve pipeline (3), a blind plate (9) is installed at the rear side of the first valve (6) and the second valve (7).

7. The system according to claim 6, characterized in that The first valve (6) and the second valve (7) are configured as gate valves.

8. The system according to claim 1, characterized in that It also includes a flushing pipeline (4), wherein the flushing pipeline (4) is connected to the mutual reserve pipeline (3), and the connection point of the flushing pipeline (4) on the mutual reserve pipeline (3) is located on the side of the second valve (7) facing the first slag discharge pipeline (1) or the second slag discharge pipeline (2).

9. The system according to claim 8, characterized in that The flushing pipeline (4) is provided with a third valve (8), and the flushing pipeline (4) is connected to the top end of the pipeline of the mutual reserve pipeline (3).

10. The system according to claim 9, characterized in that The third valve (8) is configured as a gate valve or a ball valve.

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