Slime water treatment system and method

Abstract

The invention relates to a coal slime water treatment system and method.The coal slime water treatment system comprises at least one collecting pool, a treatment assembly, a recycling pool and a drainage assembly, the collecting pool is used for collecting coal slime water, and the treatment assembly is communicated with the collecting pool and used for treating the coal slime water in the collecting pool; the recycling pool is used for recycling the treated slime water, the drainage assembly comprises a plurality of drainage ditches, the drainage ditches are used for conveying the slime water to the collecting pool, and a plurality of first flushing nozzles are arranged in the drainage ditches at intervals in the extending direction of the drainage ditches and used for flushing the drainage ditches. According to the slime water treatment system, the first flushing nozzles are arranged in the drainage ditch and can be started when the drainage ditch does not work to flush impurities such as residual coal slime in the drainage ditch, and the situation that a large number of impurities are accumulated in the drainage ditch along with use of the drainage ditch, workers need to clean the impurities regularly in the follow-up process, and a large number of manpower resources are wasted is avoided.

Description

Technical Field

[0001] This disclosure relates to the field of coal slurry water treatment technology, and more specifically, to a coal slurry water treatment system and method. Background Technology

[0002] During normal coal transportation in thermal power plants, large amounts of water are used for flushing to remove coal dust and broken coal, generating coal slurry. In related technologies, the coal slurry is typically collected and transported through drainage ditches to a sedimentation tank. After settling in the sedimentation tank, the upper layer is transported to a clarifier for chemical purification, ultimately achieving coal slurry recycling. However, this method often leaves a large amount of coal slurry in the drainage ditches, which is difficult to clean, requiring significant manpower for regular cleaning. Furthermore, the resulting coal slurry is also difficult to process. Summary of the Invention

[0003] The purpose of this disclosure is to provide a coal slurry water treatment system that can prevent coal slurry impurities from remaining in the drainage ditch.

[0004] To achieve the above objectives, the first aspect of this disclosure provides a coal slurry water treatment system, comprising: At least one collection tank is provided for collecting coal slurry water; A processing component, connected to the collection tank, is used to treat the coal slurry water in the collection tank; A recycling pond, the recycling pond being used to recycle the treated coal slurry water; The drainage assembly includes multiple drainage ditches for conveying coal slurry water to the collection pool, and multiple first flushing nozzles are provided in the drainage ditches and arranged at intervals along the extension direction of the drainage ditches for flushing the drainage ditches.

[0005] Optionally, the drainage ditch includes a multi-deposition section and a low-deposition section, wherein the number of first flushing nozzles provided in the multi-deposition section is greater than the number of first flushing nozzles provided in the low-deposition section.

[0006] Optionally, it also includes a control component for controlling the flushing sequence of the plurality of first flushing nozzles.

[0007] Optionally, the collection pool is provided with a second flushing nozzle, and multiple second flushing nozzles are provided, located at the bottom of the inner cavity of the collection pool and arranged at intervals along the circumference of the collection pool.

[0008] Optionally, it also includes a pumping assembly, which includes a first pumping assembly and a second pumping assembly. The first pumping assembly is connected to the collection tank and the treatment assembly and is used to transport the coal slurry water in the collection tank to the treatment assembly. The second pumping assembly is connected to the collection tank and a plurality of second flushing nozzles and is used to transport the coal slurry water in the collection tank to the plurality of second flushing nozzles.

[0009] Optionally, both the first pumping assembly and the second pumping assembly include a water pump, a first pipeline, and a second pipeline. The first pipeline connects to the collection tank and the treatment assembly, and the second pipeline connects to the collection tank and a plurality of second flushing nozzles. The first pipeline and the second pipeline in the first pumping assembly and the second pumping assembly can only be used individually, and the first pipeline and the second pipeline in the first pumping assembly and the second pumping assembly are used alternately.

[0010] Optionally, the collection pool and the processing component are connected by a connecting pipe, the connecting pipe being connected to the recycling pool, and a control valve is provided in the connecting portion.

[0011] Optionally, the processing component includes a filter press, which is connected to the collection tank and is used to treat the coal slurry water in the collection tank.

[0012] Optionally, a debris removal component is provided at the connection between the drainage ditch and the collection pool, and the debris removal component is detachably arranged at the connection between the drainage ditch and the collection pool.

[0013] A second aspect of this disclosure also provides a method for treating coal slurry water, comprising the following steps: The coal slurry water is collected into a collection pool through a drainage system. When the coal slurry water in the collection tank reaches a preset amount, the coal slurry water is transported to the processing component. The processing unit treats coal slurry water; The treated coal slurry water is transported to a recycling pond; After the drainage components are transported, the first flushing nozzle is turned on to flush the drainage ditch.

[0014] The advantages of this disclosure through the above technical solution are as follows: The drainage component of the coal slurry water treatment system of this disclosure includes multiple drainage ditches, which can transport coal slurry water to the collection pool. By setting multiple first flushing nozzles in the drainage ditches, they can be activated when the drainage ditches are not in operation to flush away residual coal slurry and other impurities. This allows the impurities to flow into the collection pool with the flushing water flow, avoiding the accumulation of impurities in the drainage ditches as they are used, which would require regular cleaning by staff and waste a lot of human resources. Furthermore, it can also avoid the need to deal with the impurities that staff clean out of the drainage ditches, thus avoiding further increases in costs.

[0015] Other features and advantages of this disclosure will be described in detail in the following detailed description section. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present disclosure and form part of the specification. They are used together with the following detailed description to explain the present disclosure, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the structure of the coal slurry water treatment system provided in an exemplary embodiment of this disclosure; Figure 2 This is a schematic diagram of a coal slurry water treatment system provided in an exemplary embodiment of this disclosure.

[0017] Explanation of reference numerals in the attached figures 1-Collection tank; 11-Second flushing nozzle; 2-Processing assembly; 3-Recovery tank; 4-Drainage assembly; 41-Drainage ditch; 42-First flushing nozzle; 43-Control assembly; 44-Debris removal component; 5-Pumping assembly; 51-First pumping assembly; 52-Second pumping assembly; 53-Water pump; 54-First pipeline; 55-Second pipeline; 6-Connecting pipe; 61-Control valve. Detailed Implementation

[0018] The specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure.

[0019] In this disclosure, unless otherwise stated, directional terms such as "upper," "lower," "higher," "lower," "top," and "bottom" generally refer to the orientation of the corresponding component or structure in the direction of gravity. "Inner" and "outer" refer to the inner and outer contours of the corresponding component. Furthermore, it should be noted that terms such as "first" and "second" are used to distinguish one element from another and do not indicate sequence or importance. Additionally, in the description with reference to the accompanying drawings, the same reference numerals in different drawings denote the same element. The above definitions are for explanation and illustration only and should not be construed as limiting this disclosure.

[0020] For ease of understanding, please refer to the appendix below. Figures 1 to 2 The specific structure and working principle of the coal slurry water treatment system disclosed herein will be described in detail with reference to the embodiments.

[0021] This disclosure relates to a coal slurry water treatment system that prevents impurities in the coal slurry water from remaining in the drainage ditch 41 and requiring subsequent cleaning by personnel. See also Figure 1 and Figure 2The coal slurry water treatment system disclosed herein includes a collection tank 1, a treatment component 2, a recovery tank 3, and a drainage component 4. The collection tank 1 can collect coal slurry water generated by thermal power plants. The collection method can be collection and transportation through pipelines. The treatment component 2 is connected to the collection tank 1 and can treat the coal slurry water in the collection tank 1. The treatment method can be conventional treatment methods such as filtration and pressure filtration. The recovery tank 3 can recover the coal slurry water after treatment by the treatment component 2. After the treated coal slurry water is recovered to the recovery tank 3, it is usually used as backup water for subsequent coal slurry cleaning, thereby enabling recycling and saving water resources. The drainage component 4 includes multiple drainage ditches 41, which can serve as channels for the coal slurry water to flow to the collection tank 1.

[0022] Multiple first flushing nozzles 42 are installed in the drainage ditch 41, and the multiple first flushing nozzles 42 are arranged at intervals along the extension direction of the drainage ditch 41, so that the first flushing nozzles 42 can be activated when the drainage ditch 41 is not transporting coal slurry water, to flush the drainage ditch 41, so that the residual coal slurry and other impurities in it can flow with the flushing water flow into the collection tank 1, avoiding the problem of coal slurry and other impurities accumulating in the drainage ditch 41 and requiring regular cleaning by staff after a certain period of time. In some embodiments, the first flushing nozzles 42 can also be connected to the recovery tank 3, and the treated coal slurry water in the recovery tank 3 can be used for flushing, avoiding waste of water resources.

[0023] The drainage component 4 of the coal slurry water treatment system disclosed herein includes multiple drainage ditches 41. The drainage ditches 41 are capable of conveying coal slurry water into the collection tank 1. By setting multiple first flushing nozzles 42 in the drainage ditches 41, they can be activated when the drainage ditches 41 are not in operation to flush out residual coal slurry and other impurities. This allows the impurities to flow into the collection tank 1 with the flushing water flow, preventing the impurities from accumulating in the drainage ditches 41 as a result of their use. This would require regular cleaning by staff, which would waste a lot of human resources. Furthermore, it avoids the need to handle the impurities that staff clean out of the drainage ditches 41, thus reducing costs.

[0024] In one embodiment of this disclosure, see Figure 1 and Figure 2The drainage ditch 41 includes a high-deposition section and a low-deposition section. It should be noted that the definitions of high-deposition and low-deposition sections can be determined by the workers based on the amount of impurities deposited in the drainage ditch 41 after a certain period of use. The different amounts of impurities deposited at different locations in the drainage ditch 41 may be due to the shape of the drainage ditch 41 or differences in the flow rate of the coal slurry water. When arranging the first flushing nozzles 42, more first flushing nozzles 42 can be installed in the high-deposition section of the drainage ditch 41 than in the low-deposition section. This allows the first flushing nozzles 42 to flush the drainage ditch 41 more thoroughly, preventing impurity accumulation in the high-deposition section and avoiding over-flushing in the low-deposition section, thereby improving the flushing effect and efficiency of the drainage ditch 41.

[0025] In one embodiment of this disclosure, see Figure 1 and Figure 2 The coal slurry water treatment system disclosed herein also includes a control component 43. The control component 43 can control the flushing sequence of multiple first flushing nozzles 42. The control component 43 can be controlled by a PLC program or other control elements known to those skilled in the art. By setting the control component 43, it is possible to prevent all the first flushing nozzles 42 from activating simultaneously during the flushing of the drainage ditch 41, which would cause the water volume in the drainage ditch 41 to increase rapidly and overflow, resulting in impurities flowing out of the drainage ditch 41 with the overflowing water. The control component 43 can control the flushing sequence of the first flushing nozzles 42 along the extension direction of the drainage ditch 41, controlling multiple first flushing nozzles 42 to flush sequentially to achieve a better flushing effect. Of course, in other embodiments, the control component 43 can also use other sequences to control the flushing sequence of the first flushing nozzles 42, depending on the actual situation; this disclosure does not impose any limitations on this.

[0026] In one embodiment of this disclosure, see Figure 1 and Figure 2Multiple second flushing nozzles 11 are installed in the collection tank 1, located at the bottom of the collection tank 1 and arranged at intervals along the circumference of the collection tank 1. During the collection of coal slurry water, impurities such as coal slurry in the collection tank 1 inevitably settle at the bottom of the collection tank 1 under the influence of gravity. After a period of use, the collection tank 1 also needs to be cleaned regularly by staff to prevent impurities from affecting its use. By installing second flushing nozzles 11 at the bottom of the collection tank 1, they can be activated when the collection tank 1 is transported to the treatment component 2 through the drainage ditch 41. The second flushing nozzles 11 can use the impact force of flushing to move the impurities at the bottom of the collection tank 1 into the coal slurry water, and then transport them to the treatment component 2 with the coal slurry water, preventing impurities from settling at the bottom of the collection tank 1 and affecting its use. In some embodiments, the second flushing nozzles 11 can be directly connected to the collection tank 1, using the coal slurry water in the collection tank 1 for flushing, thus avoiding waste of water resources.

[0027] In one embodiment of this disclosure, see Figure 1 and Figure 2 The coal slurry water treatment system disclosed herein also includes a pumping assembly 5, which includes a first pumping assembly 51 and a second pumping assembly 52. ​​The first pumping assembly 51 is connected to the collection tank 1 and the treatment assembly 2, and can transport the coal slurry water in the collection tank 1 to the treatment assembly 2. The second pumping assembly 52 is connected to the collection tank 1 and a plurality of second flushing nozzles 11 in the collection tank 1, so that the coal slurry water in the collection tank 1 can be transported to the second flushing nozzles 11, so that the second flushing nozzles 11 can use the coal slurry water in the collection tank 1 to flush the collection tank 1, thereby achieving further utilization of the coal slurry water and avoiding the need for a separate external water source to flush the deposited impurities in the collection tank 1.

[0028] In one embodiment of this disclosure, see Figure 1 and Figure 2 Both the first pumping assembly 51 and the second pumping assembly 52 include a water pump 53, a first pipeline 54, and a second pipeline 55. The water pump 53 can be a sewage pump to prevent impurities in the coal slurry from clogging it. The first pipeline 54 connects to the collection tank 1 and the treatment assembly 2, and the second pipeline 55 connects to the collection tank 1 and multiple second flushing nozzles 11. Both the first pipeline 54 and the second pipeline 55 are connected to the water pump 53. During operation, only one of the first pipeline 54 or the second pipeline 55 in the first pumping assembly 51 and the second pumping assembly 52 can be used at a time, and they are used alternately for transporting and flushing the coal slurry in the collection tank 1.

[0029] For example, when the first pipe 54 in the first pumping assembly 51 is working, the second pipe 55 in the first pumping assembly 51 will not work. Conversely, when the second pipe 55 in the second pumping assembly 52 is working, the first pipe 54 in the first pumping assembly 51 will not work. Alternating use of the two pumping assemblies can prevent damage to either the first pipe 54 or the second pipe 55 due to prolonged use. The operation of the first pipe 54 and the second pipe 55 can be controlled by electric valves. Both pipes are connected to the water pump 53; simply open the corresponding electric valve during use. Of course, in other embodiments, the pumping assembly 5 can have other structures, depending on the actual situation, and this disclosure does not impose any limitations on this.

[0030] In one embodiment of this disclosure, see Figure 1 and Figure 2 The collection tank 1 and the treatment component 2 are connected by a connecting pipe 6. The connecting pipe 6 can be a part of the first pipeline 54 described in the above embodiment. The connecting pipe 6 is connected to the recovery tank 3, and a control valve 61 is provided on the connecting part. The connection pipe 6 is connected to the recovery tank 3 so that when the connecting pipe 6 needs to be cleaned after a period of use, the control valve 61 can be opened to allow the clean coal slurry water that has been treated in the recovery tank 3 to enter the connecting pipe 6 to flush the connecting pipe 6. This is to prevent the accumulation of impurities in the connecting pipe 6 after long-term use, which could cause blockage of the connecting pipe 6 and affect the transportation of coal slurry water from the collection tank 1 to the treatment component 2.

[0031] In one embodiment of this disclosure, the processing component 2 is a filter press. Coal slurry containing a large amount of impurities is transported from the collection tank 1 to the filter press. The impurities are retained in the filter press, while the cleaner, processed coal slurry continues to flow to the recovery tank 3 for storage. The filter press also squeezes out excess water from the impurities, which also flows to the recovery tank 3. The remaining impurities, with less water, contain a higher amount of coal slurry and can be recycled, improving the coal slurry recovery efficiency. Of course, in other embodiments, the processing component 2 may also include other structures capable of processing coal slurry, depending on the actual situation; this disclosure does not impose any limitations on this.

[0032] In one embodiment of this disclosure, see Figure 1 and Figure 2A debris removal component 44 is provided at the connection between the drainage ditch 41 and the collection tank 1. The debris removal component 44 is detachably connected to the connection between the drainage ditch 41 and the collection tank 1. By providing the debris removal component 44, large impurities in the coal slurry water can be filtered out, preventing large stones and other impurities from entering the collection tank 1 and causing blockage of the drainage ditch 41 or damage to the treatment component 2. In some embodiments, the debris removal component 44 can be frame-shaped, with a wire mesh or other structure provided in the frame to remove large impurities. The removed impurities will remain in the frame. The detachable connection between the debris removal component 44 and the drainage ditch 41 and the collection tank 1 can be achieved by snap-fit ​​or bolt connection, or other methods known to those skilled in the art, which will not be described in detail here.

[0033] The coal slurry water treatment system disclosed herein can effectively remove impurities remaining in the drainage ditch 41 and the collection tank 1 by setting a first flushing nozzle 42 and a second flushing nozzle 11 in the drainage ditch 41 and the collection tank 1. This eliminates the need for staff to clean the system regularly, saving manpower. Furthermore, the removed coal slurry impurities can enter the treatment component 2 for further physical treatment, reducing the moisture content of the coal slurry impurities for recycling. This avoids the need to add chemical agents to the coal slurry water for treatment, which would otherwise pollute the environment.

[0034] A second aspect of this disclosure also relates to a coal slurry water treatment method applicable to the coal slurry water treatment system described in the above embodiments. The method includes the following steps: First, coal slurry water generated during cleaning in the power plant is transported to a collection tank 1 via a drainage ditch 41 in the drainage assembly 4. During collection, large impurities in the coal slurry water are removed by a removal component 44 at the connection between the drainage ditch 41 and the collection tank 1. Once the coal slurry water in the collection tank 1 reaches a preset amount, it is transported to a treatment assembly 2. The transport method can employ the pumping unit described in the above embodiments. During the process of conveying coal slurry water, the inside of the collection pool 1 can also be flushed by the pumping component 5 and the second flushing nozzle 11 to prevent coal slurry impurities from remaining in the collection pool 1. The coal slurry water conveyed to the treatment component 2 will be purified under the treatment of the treatment component 2. After purification, the coal slurry water will be conveyed to the recycling pool 3 for storage for later use. Finally, when the drainage component 4 is not working, the first flushing nozzle 42 will be activated in a certain sequence at regular intervals by the control component 43 to flush the drainage ditch 41 so that the residual coal slurry impurities can be flushed into the collection pool 1.

[0035] The above-mentioned coal slurry water treatment method can effectively remove coal slurry and other impurities remaining in the drainage component 4, allowing the coal slurry impurities to flow along the flushing water sprayed from the first flushing nozzle 42 into the collection pool 1. This avoids the problem of coal slurry impurities accumulating in the drainage ditch 41 and requiring regular cleaning by staff after a certain period of time, thus saving cleaning costs.

[0036] The preferred embodiments of this disclosure have been described in detail above with reference to the accompanying drawings. However, this disclosure is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this disclosure, various simple modifications can be made to the technical solutions of this disclosure, and these simple modifications all fall within the protection scope of this disclosure.

[0037] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this disclosure will not describe the various possible combinations separately.

[0038] Furthermore, various different embodiments of this disclosure can be combined in any way, as long as they do not violate the spirit of this disclosure, they should also be regarded as the content disclosed in this disclosure.

Claims

1. A coal slurry water treatment system, characterized by, The application relates to a coal slurry water treatment device. The device comprises a collecting pool, a treatment assembly, a recovery pool and a drainage assembly. The collecting pool is provided with at least one collecting pool for collecting coal slurry water. The treatment assembly is communicated with the collecting pool and used for treating the coal slurry water in the collecting pool. The recovery pool is used for recovering the treated coal slurry water.

2. The coal slurry water treatment system of claim 1, wherein, The drainage assembly comprises a plurality of drainage channels for conveying the coal slurry water to the collecting pool, and a plurality of first flushing nozzles are arranged in the drainage channels and are arranged at intervals along the extension direction of the drainage channels for flushing the drainage channels.

3. The coal slurry water treatment system of claim 1, wherein, The drainage channels comprise a plurality of sedimentation sections and a few sedimentation sections, and the number of the first flushing nozzles arranged in the plurality of sedimentation sections is greater than that of the first flushing nozzles arranged in the few sedimentation sections.

4. The coal slurry water treatment system of claim 1, wherein, The device further comprises a control assembly for controlling the flushing sequence of the plurality of first flushing nozzles.

5. The coal slurry water treatment system of claim 4, wherein, The collecting pool is provided with a plurality of second flushing nozzles arranged at intervals along the circumference of the collecting pool and located at the bottom of the inner cavity of the collecting pool.

6. The coal slurry water treatment system of claim 5, wherein, The device further comprises a water pumping assembly comprising a first water pumping assembly and a second water pumping assembly.

7. The coal slurry water treatment system of claim 1, wherein, The first water pumping assembly is communicated with the collecting pool and the treatment assembly and is used for conveying the coal slurry water in the collecting pool to the treatment assembly.

8. The coal slurry water treatment system of claim 1, wherein, The second water pumping assembly is communicated with the collecting pool and the plurality of second flushing nozzles and is used for conveying the coal slurry water in the collecting pool to the plurality of second flushing nozzles.

9. The coal slurry water treatment system of claim 1, wherein, The first water pumping assembly and the second water pumping assembly each comprise a water pump, a first pipeline and a second pipeline.

10. A coal slurry water treatment method, characterized by, The first pipeline is communicated with the collecting pool and the treatment assembly. The second pipeline is communicated with the collecting pool and the plurality of second flushing nozzles. The first pipeline and the second pipeline in the first water pumping assembly and the second water pumping assembly can be used alone. The first pipeline and the second pipeline in the first water pumping assembly and the second water pumping assembly are alternately used. The collecting pool and the treatment assembly are communicated through a connecting pipe. The connecting pipe is connected with the recovery pool, and the communicated part is provided with a control valve. The treatment assembly comprises a filter plate frame machine communicated with the collecting pool and used for treating the coal slurry water in the collecting pool. The connecting part of the drainage channel and the collecting pool is provided with a dedusting element which is detachably arranged at the connecting part of the drainage channel and the collecting pool. The device comprises the following steps: The coal slurry water is collected into the collecting pool through the drainage assembly. When the coal slurry water in the collecting pool reaches a preset amount, the coal slurry water is conveyed to the treatment assembly. The treatment assembly treats the coal slurry water. The treated coal slurry water is conveyed to the recovery pool. After the drainage assembly is conveyed, the first flushing nozzles are opened to flush the drainage channels.

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