CN116592282B - Flow regulating device and flow regulating method for slurry conveying pipeline in wet desulfurization process - Google Patents

Flow regulating device and flow regulating method for slurry conveying pipeline in wet desulfurization process

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Publication number
CN116592282B
CN116592282B CN202310436434.5A CN202310436434A CN116592282B CN 116592282 B CN116592282 B CN 116592282B CN 202310436434 A CN202310436434 A CN 202310436434A CN 116592282 B CN116592282 B CN 116592282B
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Prior art keywords
flow
slurry
dewatering
shut
valve
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CN116592282A (en
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王生公
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Guoneng Longyuan Environmental Protection Nanjing Co ltd
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Guoneng Longyuan Environmental Protection Nanjing Co ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17D—PIPE-LINE SYSTEMS; PIPE-LINES
    • F17D1/00—Pipe-line systems
    • F17D1/08—Pipe-line systems for liquids or viscous products
    • F17D1/14—Conveying liquids or viscous products by pumping
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B11/00—Calcium sulfate cements
    • C04B11/02—Methods and apparatus for dehydrating gypsum
    • C04B11/028—Devices therefor characterised by the type of calcining devices used therefor or by the type of hemihydrate obtained
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17D—PIPE-LINE SYSTEMS; PIPE-LINES
    • F17D3/00—Arrangements for supervising or controlling working operations
    • F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17D—PIPE-LINE SYSTEMS; PIPE-LINES
    • F17D3/00—Arrangements for supervising or controlling working operations
    • F17D3/14—Arrangements for supervising or controlling working operations for eliminating water

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Treating Waste Gases (AREA)

Abstract

The invention relates to the technical field of desulfurization treatment, in particular to a flow regulating device and a flow regulating method for a slurry conveying pipeline of a wet desulfurization process, wherein the device comprises a desulfurization tower device, a slurry tank and a slurry tank, wherein the desulfurization tower device is used for desulfurizing and generating gypsum; and the buffer container is connected with the slurry pool through a first pipeline and is used for conveying the slurry in the slurry pool to the buffer container. According to the invention, in the original structure, only one shut-off valve and a flow limiting orifice plate are added on the second pipeline, when the shut-off valve of the main pipeline is closed, working medium flows only through the flow limiting orifice plate, and because the flow limiting orifice plate throttles, the pipeline conveying capacity meets the treatment capacity of 1 dewatering device, and the flow dead zone of working medium before and after the shut-off valve is extremely short, the flow limiting orifice plate is arranged above the shut-off valve, so that slurry clogging phenomenon cannot occur, the whole manufacturing cost is low, and the larger the slurry conveying capacity is, the investment can be saved.

Description

Flow regulating device and flow regulating method for slurry conveying pipeline in wet desulfurization process
Technical Field
The invention relates to the technical field of desulfurization treatment, in particular to a flow regulating device and a flow regulating method for a slurry conveying pipeline in a wet desulfurization process.
Background
In the wet desulfurization process, gypsum is a byproduct and exists in a slurry tank of a desulfurization tower, and continuously generated gypsum slurry is required to be sent to a dehydration system for dehydration, so that dehydrated gypsum is obtained, and the gypsum becomes a building material which can be conveniently transported. The gypsum slurry is generally conveyed by pumping, as shown in fig. 1, because the yield of the desulfurized gypsum can fluctuate with the fluctuation of the boiler flue gas load, and the variation range is relatively large.
For this reason, a buffer tank is generally required to be disposed upstream of the gypsum slurry delivery pump to accommodate such fluctuation changes as much as possible, two sets of dewatering equipment are generally disposed downstream of the gypsum slurry delivery pump, the total load of the two sets of dewatering equipment is defined as 200% load, the yield of gypsum is judged according to the density of the slurry pool of the desulfurizing tower, and when the yield of gypsum is large (generally greater than 75% load), the two sets of dewatering equipment are required to be operated simultaneously, or one set of dewatering equipment is required to be operated continuously, and one set of dewatering equipment is required to be operated intermittently. At low loads (typically less than 75% load), one piece of equipment is operated continuously or intermittently.
The gypsum slurry delivery and supply must be capable of satisfying both the amount of operation of one set of dewatering system and the amount of simultaneous operation of two sets of dewatering equipment. The traditional flow regulation and control method comprises the following steps of (1) adopting variable frequency regulation for a slurry conveying pump, (2) adopting a slurry regulating ball valve, and (3) establishing an independent slurry supply pipeline for each set of dewatering equipment. The three treatment modes can meet the requirements in the process, but the cost is relatively expensive, and is more than ten thousand yuan, in particular to the (2) and (3) schemes, and the cost is at least more than 5 ten thousand yuan.
Disclosure of Invention
According to a first aspect of the object of the present invention, a flow regulating device for a slurry transport conduit, in particular for slurry transport control in a wet desulfurization process, is proposed, said flow regulating device comprising:
a desulfurizing tower apparatus for desulfurizing and producing gypsum in the slurry pond;
the buffer container is connected with the slurry pool through a first pipeline and is used for conveying the slurry in the slurry pool to the buffer container;
the gypsum dehydration equipment is connected with the buffer container through a second pipeline, a conveying pump is arranged on the second pipeline, the gypsum dehydration equipment comprises a first dehydration equipment and a second dehydration equipment, two branch pipes are arranged at the tail end of the second pipeline, and the two branch pipes are respectively connected to the first dehydration equipment and the second dehydration equipment;
Wherein, be equipped with adjusting part on the second pipeline, adjusting part is set up to including first state and second state, wherein:
the adjusting component is in a first state, and the upper limit of the flow of the second pipeline is smaller than or equal to the dehydration flow of the first dehydration equipment or the second dehydration equipment;
In the second state, the upper flow limit of the second pipeline is smaller than or equal to the total dehydration flow of the first dehydration equipment and the second dehydration equipment.
As an alternative embodiment, the regulating component comprises a shut-off valve and a flow limiting orifice plate, wherein the shut-off valve and the flow limiting orifice plate are connected to the second pipeline in parallel, so that in the process that the medium in the buffer container is pumped into the second pipeline by the delivery pump and delivered to the gypsum dewatering equipment, at least one flow switch control channel is arranged in the second pipeline, one flow switch control channel is controlled by the shut-off valve, and the other flow switch control channel is controlled by the flow limiting orifice plate.
As an alternative embodiment, when the regulating component is in the first state, the shutoff valve is in the shutoff state, and the medium in the second pipeline flows through the flow limiting orifice plate;
when the regulating part is switched to the second state, the shutoff valve is in an open state, and the medium in the second pipeline flows through the flow limiting pore plate and the shutoff valve at the same time.
As an alternative embodiment, the restrictor orifice is located above the shut-off valve.
As an alternative embodiment, in the case that the power of the first dewatering device is the same as that of the second dewatering device, and each dewatering device has the same maximum treatment capacity, the upper flow limit of the flow limiting orifice plate is smaller than or equal to the dewatering flow of the first dewatering device or the second dewatering device.
As an alternative embodiment, the shut-off valve is a butterfly valve.
As an alternative embodiment, the restriction orifice plate comprises a wear resistant alloy plate and is provided with a via hole at its center.
As an alternative embodiment, a stirrer is arranged in the buffer container, and the stirrer is used for mixing the medium in the buffer container.
As an optional implementation manner, a concentration monitoring sensor is arranged in the slurry tank of the desulfurizing tower equipment and is used for detecting the concentration of the medium;
The regulating member is controlled to be in the second state in response to the detected medium concentration being greater than a preset value, and is controlled to be switched to the first state in response to the medium concentration in the slurry tank being equal to or less than the preset value.
According to a second aspect of the object of the present invention, there is also presented a slurry delivery flow regulating method for use in a wet desulfurization process, the method comprising the steps of:
monitoring the medium concentration in a slurry pond of the desulfurizing tower equipment, and determining the gypsum amount in the slurry pond;
controlling pumping from the buffer vessel to the gypsum dewatering device and controlling operation of the gypsum dewatering device based on the monitored media concentration, wherein:
When the monitored concentration of the medium in the slurry pool is larger than a preset value, the regulating component is controlled to be in a second state, so that the shutoff valve is in an open state, the medium flowing in the second pipeline simultaneously flows through the flow limiting pore plate and the shutoff valve, and the upper flow limit of the second pipeline is smaller than or equal to the total dehydration flow of the first dehydration equipment and the second dehydration equipment;
And in response to the monitored concentration of the medium in the slurry pool being less than or equal to a preset value, the regulating component is controlled to be switched to a first state, the shutoff valve is controlled to be switched to a shutoff state, the medium flowing in the second pipeline only flows through the flow limiting hole plate, so that the upper flow limit of the second pipeline is less than or equal to the dehydration flow of the first dehydration equipment or the second dehydration equipment, and the first dehydration equipment or the second dehydration equipment is controlled to be started to carry out gypsum dehydration treatment.
Compared with the prior art, the flow regulating device of the slurry conveying pipeline is characterized in that on the basis of the existing pumping dewatering system, the shutoff valve and the flow limiting orifice plate are only added on the second pipeline, when the shutoff valve of the main pipeline is closed, media only circulate through the flow limiting orifice plate, the flow limiting orifice plate throttles, the pipeline conveying capacity meets the treatment capacity of 1 dewatering device, the working medium flowing dead zone before and after the shutoff valve is extremely short, the flow limiting orifice plate is arranged above the shutoff valve, so that slurry blocking phenomenon cannot occur, the whole manufacturing cost is only about 5000 yuan, and the larger the slurry conveying capacity is, the investment can be saved.
Drawings
The drawings are not intended to be drawn to scale. In the drawings, each identical or nearly identical component that is illustrated in various figures may be represented by a like numeral. For purposes of clarity, not every component may be labeled in every drawing. Embodiments of various aspects of the invention will now be described, by way of example, with reference to the accompanying drawings.
Fig. 1 is a schematic view of a flow rate adjusting device of a slurry transport pipe in the prior art.
Fig. 2 is a schematic view of a flow rate adjusting device of a slurry transport pipe according to an embodiment of the present invention.
Fig. 3 is a control schematic of a flow rate adjusting device according to an embodiment of the present invention.
Detailed Description
For a better understanding of the technical content of the present invention, specific examples are set forth below, along with the accompanying drawings.
The slurry transport in the limestone-gypsum wet desulfurization process of a coal-fired power plant will be described with reference to fig. 1.
The gypsum slurry produced by flue gas desulfurization is produced in a slurry tank of a desulfurizing tower device 1, because the fluctuation in flue gas treatment is large, the concentration of gypsum in the slurry tank is changed, only one dehydrating device is used for treating the gypsum slurry, the gypsum cannot meet the requirement, generally, two dehydrating devices are used for treating the gypsum, the working states of the two dehydrating devices are determined according to the concentration of the gypsum slurry in the slurry tank, for example, when the gypsum yield is greater than 75% of load, the two dehydrating devices are required to operate simultaneously, or one continuously operating, one intermittently operating, and when the gypsum yield is lower than 75% of load, one continuously or intermittently operating, the one device is required to operate, and meanwhile, the flow of a conveying pipeline is required to be controlled.
As described in connection with fig. 2, the present invention proposes a flow rate adjusting device for slurry transport pipes, comprising a desulfurizing tower apparatus 1, a buffer container 3, a transport pump 4, and an adjusting member.
In the wet desulfurization process, gypsum is a byproduct, gypsum is generated in a slurry pool in the desulfurization process of the desulfurization tower equipment 1, and in order to judge the amount of the gypsum generated, a concentration monitoring sensor is arranged in the slurry pool, and when the gypsum yield is high, the concentration of the slurry pool is increased, and otherwise, the concentration of the gypsum is decreased. Thus, the gypsum yield can be obtained by detecting the concentration of the slurry pond.
Thus, in embodiments of the present invention, it may be decided to turn on one dewatering device or both dewatering devices depending on the amount of gypsum produced.
Preferably, the power of the two dewatering devices is the same, each dewatering device has the same maximum throughput, and the load of the two devices at the maximum throughput is 200%. According to the relevant design requirements, when the gypsum yield is greater than 75% load, two dewatering devices are required to operate simultaneously, or one continuously, one intermittently, and one continuously or intermittently at less than 75% load.
As shown in fig. 1, the buffer container 3 is connected to the slurry tank via a first pipe 2 for transferring the slurry in the slurry tank of the desulfurizing tower apparatus 1 to the buffer container 3.
The gypsum dewatering device is connected with a buffer container 3 through a second pipeline 5, and the buffer container 3 is used for buffering flow changes in the pipeline.
The second pipe 5 is provided with a transfer pump 4, and the slurry in the buffer vessel is pumped by the transfer pump 4.
The gypsum dewatering device comprises a first dewatering device 61 and a second dewatering device 62, which, as shown in connection with fig. 1, are provided with two branches at the end of the second pipe 5, which are connected to the first dewatering device and the second dewatering device, respectively.
Wherein, the buffer container 3 is internally provided with a stirrer 31 which is driven by a motor to rotate and operate for mixing the media in the buffer container 3.
Referring to fig. 1, according to an example of the invention, the second duct 5 is provided with an adjusting member which can be set in at least a first state and a second state:
in the first state, the upper limit of the flow rate of the second pipeline 5 is smaller than or equal to the dehydration flow rate of the first dehydration equipment or the second dehydration equipment;
In the second state, the upper limit of the flow rate of the second pipe 5 is equal to or less than the total flow rate of dehydration of the first dehydration apparatus and the second dehydration apparatus.
As an alternative embodiment, the regulating member is electrically connected to a regulating controller 80, and the state of the regulating member is controlled and switched by the regulating controller 80. The tuning controller 80 may be configured to be implemented based on an embedded control system or an industrial control computer system. It should be appreciated that the conditioning controller 80 has a data storage, processing and providing a human interface input output interface capable of being entered by an operator and a display capable of providing visual feedback for displaying status information of objects received and/or processed by the slurry delivery flow conditioning device of an embodiment of the present invention.
As an alternative example, when the gypsum production is less than 75% load, the control adjustment member is in the first state, which allows a flow rate of less than 75% load of the individual dewatering equipment to pass. When the gypsum production is greater than 75% load, the regulator controller 80 controls the regulator to switch to the second state, allowing flow in excess of 75% load to pass, thus requiring only two actions to meet the dehydration requirements of both devices.
In a preferred embodiment, the regulating means comprise a shut-off valve 71 and a restriction orifice 72, which shut-off valve 71 and restriction orifice 72 are connected in parallel to the second conduit 5, i.e. the medium in the buffer vessel 3 is pumped via the transfer pump 4 into the second conduit 5 for transfer to the dewatering device, wherein there are at least 2 flow switch controls in the second conduit, one of which is controlled by the shut-off valve 71 and the other by the restriction orifice 72.
In an embodiment of the present invention, the orifice plate 72 is configured to have a 3mm thick wear resistant alloy plate with a centrally located via sized for a predetermined flow rate and load. In the example of the present invention, the via size is designed to take as an example a maximum of 75% load of the medium flowing through. Of course, in other embodiments, the design of the aforementioned load amounts may also be adjusted as desired.
That is, when the regulating member is in the first state, the shut-off valve 71 is in the shut-off state, and the medium in the second pipe 5 flows through the restriction orifice 72. Thus, the medium flowing through the restriction orifice 72 is at most 75% loaded, sufficient to meet the operating requirements of a dewatering device.
It should be appreciated that the upper limit of the flow rate of the restriction orifice 72 should be equal to or less than the dewatering flow rate of the first dewatering device or the second dewatering device, where the power of the first dewatering device is the same as the power of the second dewatering device, and where each dewatering device has the same maximum throughput.
When the regulating part is switched to the second state, the shut-off valve 71 is in an open state, and the medium in the second pipeline 5 flows through the flow limiting orifice plate 72 and the shut-off valve 71 at the same time, at the moment, the medium flowing through the flow limiting orifice plate 72 and the shut-off valve 71 exceeds 75% load, so that the operation requirements of the two devices are met.
In the embodiment of the invention, a concentration monitoring sensor 11 is arranged in the slurry pond of the desulfurizing tower equipment 1 and is used for detecting the concentration of a medium, namely the amount of gypsum generated in the slurry pond and representing the gypsum yield. When the detected medium concentration is greater than the preset value, the adjusting means is controlled by the adjusting controller 80 to be in the second state. When the detected concentration of the medium in the slurry tank is equal to or less than the preset value, the adjusting part is controlled to switch to the first state by the adjusting controller 80.
Thus, as shown in fig. 2 and 3, the flow rate adjusting device for a slurry delivery pipe according to an embodiment of the present invention, the process of adjusting the flow rate of slurry delivery using the flow rate adjusting device includes:
Monitoring the medium concentration in a slurry pond of the desulfurization tower equipment 1, and determining the gypsum amount in the slurry pond;
controlling pumping from the buffer vessel 3 to the gypsum dewatering device and controlling operation of the gypsum dewatering device based on the monitored concentration of the medium, wherein:
In response to the monitored concentration of the medium in the slurry tank being greater than a preset value, the regulating component is controlled to be in a second state, so that the shutoff valve 71 is in an open state, the medium flowing in the second pipeline 5 simultaneously flows through the flow limiting orifice plate 72 and the shutoff valve 71, and the upper limit of the flow of the second pipeline 5 is less than or equal to the total dewatering flow of the first dewatering equipment and the second dewatering equipment;
in response to the monitored concentration of the medium in the slurry tank being less than or equal to a preset value, the regulating component is controlled to switch to a first state, the shutoff valve 71 is controlled to switch to a shutoff state, the medium flowing in the second pipeline 5 only flows through the flow limiting orifice plate 72, so that the upper flow limit of the second pipeline 5 is less than or equal to the dewatering flow of the first dewatering device or the second dewatering device, and the first dewatering device 61 or the second dewatering device 62 is controlled to be started for gypsum dewatering treatment.
As described in the previous embodiments, in the examples of the present invention, the discrimination and control switch adjustments are made as to whether the gypsum production reaches the 75% load standard.
In an alternative embodiment, if the power of the first dewatering apparatus 61 or the second dewatering apparatus 62 is different, the upper flow limit of the restriction orifice 72 is less than or equal to the dewatering flow of the less power apparatus of the first dewatering apparatus or the second dewatering apparatus.
In a preferred embodiment, the shut-off valve 71 is a butterfly valve.
Preferably, the orifice plate 72 is positioned above the shut-off valve 71 to prevent slurry clogging of the orifice plate 72.
In combination with the embodiment, in the original structure, the shutoff valve and the current limiting orifice plate are only added on the second pipeline, when the shutoff valve of the main pipeline is closed, working medium flows only through the current limiting orifice plate, the pipeline conveying capacity meets the treatment capacity of 1 dehydration device due to the throttling of the current limiting orifice plate, the working medium flowing dead zone before and after the shutoff valve is extremely short, the current limiting orifice plate is arranged above the shutoff valve, therefore, slurry blocking phenomenon cannot occur, the whole manufacturing cost is only about 5000 yuan, and the larger the slurry conveying capacity is, the investment can be saved.
While the invention has been described with reference to preferred embodiments, it is not intended to be limiting. Those skilled in the art will appreciate that various modifications and adaptations can be made without departing from the spirit and scope of the present invention. Accordingly, the scope of the invention is defined by the appended claims.

Claims (7)

1.一种浆液输送管道的流量调节装置，其特征在于，包括：1. A flow regulating device for a slurry conveying pipeline, characterized in that it comprises: 脱硫塔设备（1），用于脱硫并在浆液池中产生石膏；Desulfurization tower equipment (1) is used for desulfurization and to produce gypsum in a slurry tank; 缓存容器（3），与浆液池通过第一管道（2）连接，用于将浆液池中的浆液输送至所述缓存容器（3）；The buffer container (3) is connected to the slurry tank via the first pipe (2) and is used to transport the slurry in the slurry tank to the buffer container (3). 石膏脱水设备，所述石膏脱水设备通过第二管道（5）与所述缓存容器（3）连接，所述第二管道（5）上设有输送泵（4），所述石膏脱水设备包括第一脱水设备和第二脱水设备，在所述第二管道（5）的末端设有两根支管，分别连接到所述第一脱水设备和第二脱水设备；The gypsum dehydration equipment is connected to the buffer container (3) through a second pipe (5). A conveying pump (4) is provided on the second pipe (5). The gypsum dehydration equipment includes a first dehydration device and a second dehydration device. Two branch pipes are provided at the end of the second pipe (5) and are respectively connected to the first dehydration device and the second dehydration device. 其中，所述第二管道（5）上设有调节部件，所述调节部件被设置成包括第一状态和第二状态，其中：The second pipe (5) is provided with an adjusting component, which is configured to include a first state and a second state, wherein: 所述调节部件在第一状态下，所述第二管道（5）的流量上限小于等于第一脱水设备或第二脱水设备的脱水流量；In the first state, the upper limit of the flow rate of the second pipe (5) is less than or equal to the dehydration flow rate of the first dehydration device or the second dehydration device; 在第二状态下，所述第二管道（5）的流量上限小于等于第一脱水设备和第二脱水设备的脱水总流量；In the second state, the upper limit of the flow rate of the second pipe (5) is less than or equal to the total dewatering flow rate of the first dewatering device and the second dewatering device; 所述调节部件包括关断阀（71）和限流孔板（72），所述关断阀（71）和所述限流孔板（72）采用并联的方式接入到第二管道（5），使得缓冲容器（3）内的介质经由所述输送泵（4）泵送至第二管道（5）内并输送到石膏脱水设备的过程中，在第二管道（5）内至少具有2个流量开关控制通道，其中一个由关断阀（71）控制，另一个由限流孔板（72）控制；The regulating component includes a shut-off valve (71) and a flow-limiting orifice plate (72). The shut-off valve (71) and the flow-limiting orifice plate (72) are connected in parallel to the second pipeline (5). During the process of the medium in the buffer container (3) being pumped into the second pipeline (5) by the transfer pump (4) and transported to the gypsum dewatering equipment, there are at least two flow switch control channels in the second pipeline (5), one of which is controlled by the shut-off valve (71) and the other is controlled by the flow-limiting orifice plate (72). 所述限流孔板（72）位于所述关断阀（71）的上方；The flow-limiting orifice plate (72) is located above the shut-off valve (71); 在所述调节部件处于第一状态时，关断阀（71）处于关断状态，第二管道（5）内的介质从限流孔板（72）内流过；When the regulating component is in the first state, the shut-off valve (71) is in the shut-off state, and the medium in the second pipeline (5) flows through the flow-limiting orifice plate (72); 在所述调节部件切换至第二状态时，关断阀（71）处于打开状态，第二管道（5）内的介质同时从限流孔板（72）以及关断阀（71）流过。When the regulating component is switched to the second state, the shut-off valve (71) is in the open state, and the medium in the second pipeline (5) flows through both the flow-limiting orifice plate (72) and the shut-off valve (71). 2.根据权利要求1所述的浆液输送管道的流量调节装置，其特征在于，在第一脱水设备与第二脱水设备的功率相同，每台脱水设备有相同的最大的处理量的情况下，所述限流孔板（72）的流量上限小于等于第一脱水设备或第二脱水设备的脱水流量。2. The flow regulating device for the slurry conveying pipeline according to claim 1, characterized in that, when the power of the first dewatering device and the second dewatering device are the same and each dewatering device has the same maximum processing capacity, the upper limit of the flow of the flow limiting orifice plate (72) is less than or equal to the dewatering flow of the first dewatering device or the second dewatering device. 3.根据权利要求2所述的浆液输送管道的流量调节装置，其特征在于，所述关断阀（71）为蝶阀。3. The flow regulating device for the slurry conveying pipeline according to claim 2, wherein the shut-off valve (71) is a butterfly valve. 4.根据权利要求1所述的浆液输送管道的流量调节装置，其特征在于，所述限流孔板（72）包括耐磨合金板并在其中心设置过孔。4. The flow regulating device for a slurry conveying pipeline according to claim 1, characterized in that the flow limiting orifice plate (72) comprises a wear-resistant alloy plate and has a through hole at its center. 5.根据权利要求1所述的浆液输送管道的流量调节装置，其特征在于，所述缓存容器（3）内设有搅拌器（31），所述搅拌器（31）用于混合所述缓存容器（3）内的介质。5. The flow regulating device for the slurry conveying pipeline according to claim 1, characterized in that a stirrer (31) is provided in the buffer container (3), and the stirrer (31) is used to mix the medium in the buffer container (3). 6.根据权利要求1所述的浆液输送管道的流量调节装置，其特征在于，所述脱硫塔设备（1）浆液池内设置有浓度监测传感器（11），用于检测介质浓度；6. The flow regulating device for the slurry conveying pipeline according to claim 1, characterized in that a concentration monitoring sensor (11) is provided in the slurry tank of the desulfurization tower equipment (1) for detecting the concentration of the medium; 响应于检测到的介质浓度大于预设值时，所述调节部件被控制在第二状态，并且在所述浆液池中介质浓度小于等于预设值时，所述调节部件被控制切换至第一状态。When the detected medium concentration is greater than a preset value, the regulating component is controlled to a second state, and when the medium concentration in the slurry tank is less than or equal to the preset value, the regulating component is controlled to switch to a first state. 7.根据权利要求1-6中任意一项所述的浆液输送管道的流量调节装置的浆液流量调节方法，其特征在于，所述方法包括以下步骤：7. The slurry flow rate regulation method of the slurry conveying pipeline flow rate regulation device according to any one of claims 1-6, characterized in that the method comprises the following steps: 监测所述脱硫塔设备（1）的浆液池中的介质浓度，确定浆液池内浆液中的石膏量；Monitor the concentration of the medium in the slurry tank of the desulfurization tower equipment (1) to determine the amount of gypsum in the slurry in the slurry tank; 根据监测到的介质浓度，控制从缓冲容器（3）向石膏脱水设备的泵送以及控制石膏脱水设备的运行，其中：Based on the monitored medium concentration, the pumping from the buffer container (3) to the gypsum dewatering equipment is controlled, as is the operation of the gypsum dewatering equipment, wherein: 响应于监测到的浆液池中介质浓度大于预设值时，将所述调节部件控制在第二状态，使得关断阀（71）处于打开状态，第二管道（5）内流过的介质同时从限流孔板（72）以及关断阀（71）流过，所述第二管道（5）的流量上限小于等于第一脱水设备和第二脱水设备的脱水总流量；并且，控制启动第一脱水设备（61）和第二脱水设备（62）同时进行石膏脱水处理；When the concentration of the medium in the slurry tank is detected to be greater than a preset value, the regulating component is controlled in the second state, so that the shut-off valve (71) is in the open state, and the medium flowing in the second pipe (5) flows through both the flow limiting orifice plate (72) and the shut-off valve (71). The upper limit of the flow rate of the second pipe (5) is less than or equal to the total dewatering flow rate of the first dewatering device and the second dewatering device; and the first dewatering device (61) and the second dewatering device (62) are started simultaneously to perform gypsum dewatering treatment. 响应于监测到的浆液池中介质浓度小于等于预设值时，所述调节部件被控制切换至第一状态，所述关断阀（71）被控制切换至关断状态，第二管道（5）内流过的介质仅从所述限流孔板（72）内流过，使得所述第二管道（5）的流量上限小于等于第一脱水设备或第二脱水设备的脱水流量；并且，控制启动第一脱水设备（61）或者第二脱水设备（62）进行石膏脱水处理。When the concentration of the medium in the slurry tank is less than or equal to a preset value, the regulating component is controlled to switch to the first state, the shut-off valve (71) is controlled to switch to the shut-off state, and the medium flowing through the second pipe (5) flows only through the flow limiting orifice plate (72), so that the upper limit of the flow of the second pipe (5) is less than or equal to the dewatering flow of the first dewatering device or the second dewatering device; and the first dewatering device (61) or the second dewatering device (62) is controlled to start for gypsum dewatering treatment.
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