CN219737176U - Density measuring device and desulfurizing device - Google Patents
Density measuring device and desulfurizing device Download PDFInfo
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- CN219737176U CN219737176U CN202321512835.6U CN202321512835U CN219737176U CN 219737176 U CN219737176 U CN 219737176U CN 202321512835 U CN202321512835 U CN 202321512835U CN 219737176 U CN219737176 U CN 219737176U
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- 230000003009 desulfurizing effect Effects 0.000 title description 2
- 238000006243 chemical reaction Methods 0.000 claims abstract description 75
- 239000002002 slurry Substances 0.000 claims abstract description 48
- 238000001739 density measurement Methods 0.000 claims abstract description 46
- 238000004891 communication Methods 0.000 claims abstract description 22
- 238000006477 desulfuration reaction Methods 0.000 claims abstract description 21
- 230000023556 desulfurization Effects 0.000 claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 46
- 238000003756 stirring Methods 0.000 claims description 33
- 238000000034 method Methods 0.000 claims description 29
- 239000000463 material Substances 0.000 claims description 27
- 230000001105 regulatory effect Effects 0.000 claims description 24
- 239000007788 liquid Substances 0.000 claims description 22
- 238000011010 flushing procedure Methods 0.000 claims description 17
- 238000007599 discharging Methods 0.000 claims description 12
- 238000005259 measurement Methods 0.000 claims description 12
- 238000012423 maintenance Methods 0.000 description 9
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 8
- 235000019738 Limestone Nutrition 0.000 description 5
- 239000006028 limestone Substances 0.000 description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 4
- 239000003546 flue gas Substances 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model discloses a density measurement device and a desulfurization device, wherein the density measurement device is used for the configuration and density measurement of raw slurry in the desulfurization device, and comprises: the reaction box is used for reacting and storing the raw slurry; one end of the measuring pipeline is communicated with the bottom of the reaction box, and the other end of the measuring pipeline is arranged at the upper part of the reaction box; the densimeter feeding pump is arranged on the measuring pipeline, an outlet of the densimeter feeding pump is connected with the densimeter, an inlet of the densimeter feeding pump is lower than the outlet, and a first valve is arranged at the inlet of the densimeter feeding pump; and the controller is in communication connection with the first valve, the densimeter and the densimeter feeding pump. Through the cooperation of densimeter feed pump and densimeter, make the flow and the velocity of flow that get into the densimeter controllable, reduce the wearing and tearing of densimeter, improve the life of densimeter, simple structure, it is convenient to maintain.
Description
Technical Field
The utility model relates to the technical field of density measurement in environment-friendly desulfurization, in particular to a density measurement device and a desulfurization device.
Background
The energy structure of China is a country with coal as the main source, and the atmospheric pollutants of coal are soot type pollution, mainly dust, sulfur dioxide and nitrogen oxides, and are the main pollutants of power plants to the atmosphere. At present, flue gas desulfurization in domestic and foreign coal-fired thermal power plants is a main measure for controlling sulfur dioxide emission, wherein a limestone-gypsum wet method is the most applied and mature process in all countries of the world. In the flue gas desulfurization process system, various primary slurries such as limestone slurry, ball mill slurry and the like need to be monitored for slurry density so as to ensure that the supplied primary slurry can fully react with flue gas with sulfur dioxide.
In the flue gas desulfurization process system, various slurries such as limestone slurry, ball mill slurry and the like need to be monitored for slurry density so as to ensure that the supplied slurry density meets the process use requirements.
The existing primary pulp density directly adopts a mass densimeter, so that the flow rate and the flow velocity entering the mass densimeter cannot be controlled, the mass densimeter is easy to wear, the replacement is needed for half a year, the cost is increased, or the structure is complex due to a series of monitoring and controlling of the flow rate and the flow velocity.
Disclosure of Invention
The present utility model aims to solve at least one of the technical problems existing in the prior art or related art.
In view of the above, the density measuring device and the desulfurization device provided by the utility model can enable the flow rate and the flow velocity entering the densimeter to be controllable through the matching use of the densimeter feeding pump and the densimeter, reduce the abrasion of the densimeter, prolong the service life of the densimeter, and have the advantages of simple structure and convenient maintenance.
Specifically, the method comprises the following technical scheme:
in a first aspect of the present utility model, there is provided a density measurement device for use in configuring and measuring the density of raw slurry in a desulfurization device, the density measurement device comprising:
the reaction box is used for reacting and storing the raw slurry;
one end of the measuring pipeline is communicated with the bottom of the reaction box, and the other end of the measuring pipeline is arranged at the upper part of the reaction box;
the densimeter feeding pump is arranged on the measuring pipeline, an outlet of the densimeter feeding pump is connected with the densimeter, an inlet of the densimeter feeding pump is lower than the outlet, and a first valve is arranged at the inlet of the densimeter feeding pump;
and the controller is in communication connection with the first valve, the densimeter and the densimeter feeding pump.
Optionally, the density measurement device further comprises:
one end of the material pipeline is connected with the material discharge port, and the other end of the material pipeline is arranged in the reaction box;
the device comprises a reaction box, a water supply device, a process water pipeline, a flowmeter and a flow regulating valve, wherein one end of the process water pipeline is connected with the water supply device, the other end of the process water pipeline is positioned at the upper part of the reaction box, the flowmeter and the flow regulating valve are further arranged on the process water pipeline, the flow regulating valve is arranged close to the reaction box, and the flowmeter and the flow regulating valve are in communication connection with the controller.
Optionally, the water inlet end and the water outlet end of the flow regulating valve are respectively provided with a second valve.
Optionally, the density measurement device further comprises an adjusting bypass, one end of the adjusting bypass is connected with the water inlet end of the flow adjusting valve, the other end of the adjusting bypass is connected with the water outlet end of the flow adjusting valve, and a third valve is arranged on the adjusting bypass.
Optionally, the density measurement device further comprises:
and one end of the overflow pipeline is connected with the upper part of the reaction box, and the other end of the overflow pipeline is connected into the slurry discharging pit.
Optionally, the density measurement pipeline is communicated with a flushing pipeline, the flushing pipeline is positioned at the outlet end of the densimeter, a fifth valve is arranged on the flushing pipeline, and the fifth valve is in communication connection with the controller;
the measuring pipeline is further connected with a second emptying pipeline, the second emptying pipeline is located at the inlet of the densimeter feeding pump, the other end of the second emptying pipeline is connected to the pulp discharging pit, a sixth valve is arranged on the second emptying pipeline, and the sixth valve is in communication connection with the controller.
Optionally, the density measurement device further comprises:
the device comprises a reaction tank, a first emptying pipeline, a second emptying pipeline and a fourth valve, wherein one end of the first emptying pipeline is connected with the bottom of the reaction tank, the other end of the first emptying pipeline is connected to a slurry discharging pit, and the fourth valve is arranged on the first emptying pipeline.
Optionally, the density measurement device further comprises a stirring device, the stirring device is located at the lower portion of the reaction box, the stirring device comprises an executing piece and a driving piece which are connected with each other, and the driving piece is in communication connection with the controller.
Optionally, two ends of the densitometer feeding pump are connected with the measuring pipeline through elastic hoses; the measuring device further comprises a liquid level meter which is arranged on the upper portion of the reaction box and used for measuring the liquid level in the reaction box, and the liquid level meter is in communication connection with the controller.
In a second aspect of the present utility model, there is provided a desulfurization apparatus comprising: the density measuring device described above.
The utility model provides a density measurement device and a desulfurization device, wherein the density measurement device comprises a measurement pipeline, one end of the measurement pipeline is connected with the bottom of a reaction box, the other end of the measurement pipeline is connected with the upper part of the reaction box, a densimeter feeding pump and a densimeter are arranged on the measurement pipeline, and a fixed frequency is set for the densimeter feeding pump, so that the flow rate and the flow velocity entering the densimeter are stable, the raw slurry with large flow rate and the flow velocity entering the densimeter is reduced, the abrasion caused to the densimeter is reduced, and the service life of the densimeter is prolonged; the density measuring device is simpler in structure and convenient to control, reduces maintenance difficulty and maintenance cost, and improves maintenance efficiency.
The foregoing description is only an overview of the present utility model, and is intended to be implemented in accordance with the teachings of the present utility model in order that the same may be more clearly understood and to make the same and other objects, features and advantages of the present utility model more readily apparent.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a density measurement device in accordance with one embodiment of the present utility model;
fig. 2 is a schematic view of a density measurement device according to another embodiment of the present utility model.
The correspondence between the reference numerals and the component names in fig. 1 is:
the device comprises a feeding pump with a density meter 1, a density meter 2, a flushing pipeline 3, a fifth valve 4, a measuring pipeline 5, a liquid level meter 6, a process pipeline 7, an 8-adjustment bypass, a third valve 9, a flow rate regulating valve 10, a second valve 11, a flow meter 12, a material pipeline 13, an overflow pipeline 14, a first emptying pipeline 15, a fourth valve 16, a stirring device 17, a reaction box 18, a first valve 19, a second emptying pipeline 20, a sixth valve 21, a slurry discharge pit 22, an elastic hose 23 and an inclined plate 26.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Before describing embodiments of the present utility model in further detail, the terms of orientation, such as "upper", "lower", "side", used in the examples of the present utility model are not intended to limit the scope of the present utility model.
In order to make the technical scheme and advantages of the present utility model more apparent, embodiments of the present utility model will be described in further detail with reference to the accompanying drawings.
Example 1
FIG. 1 is a schematic diagram of a density measurement device in accordance with one embodiment of the present utility model.
As shown in fig. 1, one embodiment of the present utility model provides a density measurement device for configuring and measuring density of raw slurry in a desulfurization device, the density measurement device comprising:
a reaction tank 18 for reaction and storage of the raw slurry;
the measuring pipeline 5, one end of the measuring pipeline 5 is communicated with the bottom of the reaction box 18, and the other end of the measuring pipeline 5 is arranged at the upper part of the reaction box 18;
the densimeter feeding pump 1 is arranged on the measuring pipeline 5, the outlet of the densimeter feeding pump 1 is connected with the densimeter 2, the inlet of the densimeter feeding pump 1 is lower than the outlet, and the inlet of the densimeter feeding pump 1 is provided with a first valve 19;
the controller is in communication with the first valve 19, the densitometer 2 and the densitometer feed pump 1.
The density measuring device comprises a measuring pipeline 5, one end of the measuring pipeline 5 is connected with the bottom of the reaction box 18, the other end of the measuring pipeline 5 is connected with the upper part of the reaction box 18, a densimeter feeding pump 1 and a densimeter 2 are arranged on the measuring pipeline 5, the densimeter feeding pump 1 is set with fixed frequency, the flow and the flow velocity entering the densimeter 2 are stable, the raw pulp with large flow and the flow velocity entering the densimeter 2 is reduced, the abrasion caused by the densimeter 2 is reduced, and the service life of the densimeter 2 is prolonged; the density measuring device is simpler in structure and convenient to control, reduces maintenance difficulty and maintenance cost, and improves maintenance efficiency.
It should be noted that, the densimeter feed pump 1 of the present utility model is a power frequency pump, so that the controller controls the opening of the densimeter feed pump 1 to be equal to the delivery of the original slurry with stable flow and low flow rate to the densimeter 2, so that the wear of the densimeter 2 can be avoided.
Specifically, after the raw slurry reacts in the reaction tank 18 for a period of time, the controller controls the first valve 19 to be opened first, and then the densimeter feed pump 1 is started, so that the densimeter feed pump 1 can be restarted after the raw slurry exists in the measurement pipeline 5, idle running of the densimeter feed pump 1 is avoided, and cavitation is easily caused because of gas in the idle running water pump, so that the measurement pipeline 5 is filled with the raw slurry (namely, the first valve 19 is opened first), and then the densimeter feed pump 1 is started, on one hand, the service life of the densimeter feed pump 1 can be prolonged, and on the other hand, the measurement accuracy of the densimeter 2 can be ensured; the densitometer 2 is also connected to a controller that receives the results of the densitometer 2 and controls the flow of material and process water into the reaction tank 18 based on the results of the tests.
In one possible embodiment, the density measurement device further comprises:
the material pipeline 13, one end of the material pipeline 13 is connected with a material discharge port, and the other end of the material pipeline 13 is arranged in the reaction box 18;
the technical water pipeline 7, one end of the technical water pipeline 7 is connected with the water supply device, the other end of the technical water pipeline 7 is positioned at the upper part of the reaction box 18, the technical water pipeline 7 is also provided with the flowmeter 12 and the flow regulating valve 10, the flow regulating valve 10 is arranged close to the reaction box 18, and the flowmeter 12 and the flow regulating valve 10 are in communication connection with the controller.
Wherein, material pipeline 13 is connected with the material discharge gate, sends limestone powder into reaction box 18 through material pipeline 13 generally, and it is to be noted that the other end of material pipeline 13 is located the upper portion of reaction box 18, avoids the export of material pipeline 13 to be stopped up by the magma in the reaction box 18, influences the transportation of material. A mixing tank may be provided between the material pipe 13 and the material outlet, and the high-density raw slurry may be fed into the reaction tank 18.
Further, one end of the process water pipeline 7 is connected with the water supply device, and the other end of the process water pipeline 7 is positioned at the upper part of the reaction box 18, so that the raw slurry in the reaction box 18 can be prevented from blocking the outlet of the process water pipeline 7; the flow meter 12 and the flow regulating valve 10 are further arranged on the process water pipeline 7, the flow regulating valve 10 is in communication connection with the controller, the controller receives density data of the densimeter 2, the controller compares the received density data with allowable density in the controller, when the density data is larger than the allowable density, the flow regulating valve 10 is controlled to be opened when the density data is higher, when the density data is smaller than the allowable density, the flow regulating valve 10 is controlled to be closed or opened to be small, when the density data is equal to the allowable density, the raw slurry in the reaction tank 18 can be conveyed to the next link of the desulfurization device, otherwise, the communication between the reaction tank 18 and the next link is closed, and the process is repeated.
It should be noted that, the flow meter 12 is used for measuring the instantaneous flow and the accumulated flow of the process water, the controller is used for controlling the opening degree of the flow control valve 10 together according to the flow data and the density data of the flow meter 12, the adjusting valve is usually opened by 0% -100%, and the cooperation between the flow meter 12 and the flow control valve 10 is a common technical means in the art, which is not described herein.
Wherein, chloride ions in the process water meet the requirements, so that corrosion to a density measuring device is avoided, and the material can be limestone powder solid or limestone liquid with higher density, and is selected according to actual needs.
In one possible embodiment, the water inlet and outlet ends of the flow control valve 10 are each provided with a second valve 11.
Wherein, a second valve 11 is arranged at two ends of the flow regulating valve 10, the second valve 11 is a manual valve, and when the flow regulating valve 10 needs to be overhauled, the second valve 11 at two ends of the flow regulating valve 10 can be manually closed, so that the flow regulating valve 10 does not participate in the work of the density measuring device any more.
In a possible embodiment, the density measuring device further comprises an adjusting bypass 8, one end of the adjusting bypass 8 is connected with the water inlet end of the flow adjusting valve 10, the other end of the adjusting bypass 8 is connected with the water outlet end of the flow adjusting valve 10, and a third valve 9 is arranged on the adjusting bypass 8.
Wherein, in the density measurement device, set up one and adjust bypass 8, when flow control valve 10 overhauls, also do not influence density measurement device's whole operation, guarantee density measurement device's work efficiency, and then guarantee whole desulfurization device's efficiency.
Further, a third valve 9 is arranged on the regulating bypass 8, the third valve 9 is a manual valve, when the two second valves 11 are closed, the third valve 9 can be opened manually at the same time, normal operation of the density measuring device is ensured, and when the flow regulating valve 10 is overhauled, the two second valves 11 can be opened manually, and then the third valve 9 is closed.
It should be noted that, the maintenance time of the flow control valve 10 is shorter, and in general, the third valve 9 is a manual valve, and if it is an electric valve, on the one hand, the control is more complicated, and the control difficulty of the density measurement device is increased, and on the other hand, the cost is increased, so that the manual valve is selected in this embodiment.
In one possible embodiment, the density measurement device further comprises:
and an overflow pipe 14, one end of the overflow pipe 14 is connected to an upper portion of the reaction tank 18, and the other end of the overflow pipe 14 is connected to the inside of the slurry discharge pit 22.
The overflow pipe 14 can automatically flow redundant raw slurry into the slurry discharging pit 22 when the height of the raw slurry in the reaction tank 18 exceeds the safe height, so that the raw slurry can be prevented from overflowing from the reaction tank 18, the normal use of the density measuring device is affected, the raw slurry can flow into the slurry discharging pit 22 from the reaction tank 18 through the height difference, and a pump body is not required to be additionally used.
In a possible embodiment, the density measurement pipeline 5 is communicated with the flushing pipeline 3, the flushing pipeline 3 is positioned at the outlet end of the densimeter 2, a fifth valve 4 is arranged on the flushing pipeline 3, and the fifth valve 4 is in communication connection with the controller;
the measuring pipeline 5 is also connected with a second emptying pipeline 20, the second emptying pipeline 20 is positioned at the inlet of the densimeter feeding pump 1, the other end of the second emptying pipeline 20 is connected into a slurry discharging pit 22, a sixth valve 21 is arranged on the second emptying pipeline 20, and the sixth valve 21 is in communication connection with the controller.
Wherein, flushing pipe 3 is connected to the exit of densitometer 2, be equipped with fifth valve 4 on the flushing pipe 3, when density measuring device stopped using, first valve 19 is closed, then open fifth valve 4, wash densitometer 2 and densitometer feed pump 1 through flushing pipe 3, need not to dismantle densitometer feed pump 1 and densitometer 2 like this, just can wash it, on the one hand can prolong the life of densitometer feed pump 1 and densitometer 2, avoid the residual corrosion of magma measuring pipe 5, densitometer feed pump 1 and densitometer 2, on the other hand can also guarantee the measurement accuracy of densitometer 2, wherein control fifth valve 4 opens and closes through the controller.
It should be noted that, the measurement pipe 5 is further provided with a second evacuation pipe 20, the second evacuation pipe 20 is connected with the inlet of the densimeter feeding pump 1, after the flushing water passing through the flushing pipe 3 sequentially passes through the densimeter 2 and the densimeter feeding pump 1, the flushing water flows into the slurry discharging pit 22 through the second evacuation pipe 20, further, the second evacuation pipe 20 is provided with a sixth valve 21, when the fifth valve 4 is opened, the sixth valve 21 is simultaneously opened, when the fifth valve 4 is closed, and after the flushing water is completely flowed, the sixth valve 21 is closed, and the opening and closing of the sixth valve 21 are controlled by the controller.
In one possible embodiment, the density measurement device further comprises:
the first evacuation pipeline 15, one end of the first evacuation pipeline 15 is connected with the bottom of the reaction box 18, the other end of the first evacuation pipeline 15 is connected to the slurry discharging pit 22, and a fourth valve 16 is arranged on the first evacuation pipeline 15.
When the density measuring device needs to discharge the raw slurry in the reaction tank 18, then the reaction tank 18 is cleaned, at this time, the first valve 19 is closed, and other valves are closed, and the first emptying is connected to the bottom of the reaction tank 18, so that the fourth valve 16 is opened, the raw slurry in the reaction tank 18 can be discharged, and the density measuring device can be continuously used after the overhaul of the reaction tank 18 is completed.
It should be noted that, since the density measurement device is not used any more at this time, the first valve 19 is closed, so that the evacuation and maintenance of the reaction tank 18 and the cleaning of the densimeter 2 and the densimeter feed pump 1 (the fifth valve and the sixth valve can be opened) can be performed simultaneously, and the cleaning time of the whole density measurement device can be saved. The fourth valve 16 is a manual valve and is normally closed.
In a possible embodiment, the density measuring device further comprises a stirring device 17, the stirring device 17 is located at the lower part of the reaction tank 18, and the stirring device 17 comprises an executing member and a driving member which are connected with each other, and the driving member is connected with the controller in a communication manner.
Through the setting of agitating unit 17, can carry out intensive mixing to process water and the material that gets into in the reaction tank 18, guarantee the density homogeneity of former thick liquid, can improve densimeter 2 measuring accuracy.
It should be noted that, in this embodiment, the stirring device 17 includes a stirring shaft and a stirring paddle fixedly connected with the stirring shaft, the stirring paddle is located at the bottom of the reaction tank 18, one end of the stirring shaft away from the stirring paddle is connected with the driving member, and the raw slurry is sufficiently stirred by the stirring paddle, so as to ensure density uniformity of the raw slurry in the reaction tank 18.
Further, a plurality of layers of stirring paddles can be arranged on the stirring shaft, and each layer of stirring paddles are arranged in parallel, so that the stirring uniformity can be further improved, wherein the material pipeline 13 and the process water pipeline 7 are communicated to the upper part of the reaction box 18 through the connecting flange while avoiding the stirring paddles.
In a possible embodiment, the two ends of the densitometer feed pump 1 are connected to the measurement pipe 5 by means of an elastic hose 23; the measuring device further comprises a liquid level meter 6 arranged at the upper part of the reaction box 18, wherein the liquid level meter 6 is used for measuring the liquid level in the reaction box 18, and the liquid level meter 6 is in communication connection with the controller.
Wherein, the both ends (export and entry) of densimeter feed pump 1 are connected with measuring pipeline 5 through elastic hose 23, can avoid the vibrations of densimeter feed pump 1 to transmit for measuring pipeline 5 and densimeter 2, on the one hand can prolong measuring pipeline 5's life, on the other hand can also avoid vibrations to influence densimeter 2's measurement accuracy.
Further, a liquid level meter 6 is further arranged in the reaction tank 18, the liquid level meter 6 is in communication connection with the controller, and the controller can determine when to start the stirring device 17 and when to shut off inflow of process water and materials by transmitting a detection result of the liquid level meter 6 to the controller. Specifically, when the liquid level is too low, the stirring device 17 is not started first, only the second valve 11 is started, the rest valves are temporarily closed, when the liquid level rises to a certain height, the controller controls the stirring device 17, meanwhile, the third valve 9 and the fourth valve 16 are kept closed, the other valves are started, when the liquid level is too high as measured by the liquid level meter 6, the overflow pipeline 14 always discharges liquid to cause certain waste, the process water pipeline 7 or the material pipeline 13 can be temporarily closed first, and after the liquid level is reduced, the process water pipeline 7 and the material pipeline 13 are normally put into use again.
The controller is a PLC controller, and is customized according to control requirements, which is a common means in the art, and will not be described herein.
Example 2
Fig. 2 is a schematic view of a density measurement device according to another embodiment of the present utility model.
As shown in fig. 2, unlike embodiment 1, the stirring device 17 of the present embodiment includes: the inclined plate 26 is obliquely arranged at the bottom of the reaction box 18, the first emptying pipeline is positioned at one side of the lowest end of the inclined plate 26, the stirring device 17 comprises a driving piece, the driving piece is arranged at one side of the inclined plate 26 deviating from original slurry, the driving piece is connected with the inclined plate 26 through a bearing, an output shaft of the driving piece penetrates through the inclined plate 26, and the output shaft is connected with the stirring paddle.
Wherein the first evacuation line is located at the side of the lowest end of the inclined plate 26, this arrangement is more conducive to discharging the whole of the raw slurry in the reaction tank 18, and improves the evacuation efficiency and the evacuation time of the reaction tank 18.
At this time, the inclined plate 26 is used as a supporting member for installing the stirring device 17, a stirring shaft is not required, the stirring paddles are directly connected with the output shaft of the driving member, the stirring device 17 in this embodiment is located at the bottom of the reaction tank 18 and is arranged in an inclined manner, and materials and process water can be sufficiently stirred without a plurality of layers of stirring paddles. The rest is the same as in embodiment 1, and will not be described again.
Example 3
An embodiment of the present utility model provides a desulfurization apparatus including the density measurement apparatus of embodiment 1 or embodiment 2.
The desulfurization device of this embodiment adopts the density measurement device of embodiment 1 or embodiment 2, so that the density of the raw slurry entering the desulfurization reaction tank meets the requirements, and sulfur dioxide can be fully reacted, thereby improving the desulfurization efficiency.
It should be noted that, the desulfurization device of this embodiment includes all the features of the foregoing embodiments 1 and 2, and also includes all the effects of the foregoing, which are not described herein again.
In the present disclosure, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The term "plurality" refers to two or more, unless explicitly defined otherwise.
Other embodiments of the utility model will be apparent to those skilled in the art from consideration of the specification and practice of the utility model disclosed herein. This utility model is intended to cover any variations, uses, or adaptations of the utility model following, in general, the principles of the utility model and including such departures from the present disclosure as come within known or customary practice within the art to which the utility model pertains. The specification and examples are to be regarded in an illustrative manner only.
The foregoing is only illustrative of the present utility model and is not to be construed as limiting thereof, but rather as various modifications, equivalent arrangements, improvements, etc., within the spirit and principles of the present utility model.
Claims (10)
1. A density measurement device for configuring and measuring density of raw slurry in a desulfurization device, the device comprising:
the reaction box is used for reacting and storing the raw slurry;
one end of the measuring pipeline is communicated with the bottom of the reaction box, and the other end of the measuring pipeline is arranged at the upper part of the reaction box;
the densimeter feeding pump is arranged on the measuring pipeline, an outlet of the densimeter feeding pump is connected with the densimeter, an inlet of the densimeter feeding pump is lower than the outlet, and a first valve is arranged at the inlet of the densimeter feeding pump;
and the controller is in communication connection with the first valve, the densimeter and the densimeter feeding pump.
2. The density measurement device of claim 1, wherein the density measurement device further comprises:
one end of the material pipeline is connected with the material discharge port, and the other end of the material pipeline is arranged in the reaction box;
the device comprises a reaction box, a water supply device, a process water pipeline, a flowmeter and a flow regulating valve, wherein one end of the process water pipeline is connected with the water supply device, the other end of the process water pipeline is positioned at the upper part of the reaction box, the flowmeter and the flow regulating valve are further arranged on the process water pipeline, the flow regulating valve is arranged close to the reaction box, and the flowmeter and the flow regulating valve are in communication connection with the controller.
3. The density measuring device of claim 2, wherein the water inlet end and the water outlet end of the flow regulating valve are respectively provided with a second valve.
4. The density measurement device of claim 2 further comprising an adjustment bypass, one end of the adjustment bypass being connected to the water inlet end of the flow control valve, the other end of the adjustment bypass being connected to the water outlet end of the flow control valve, the adjustment bypass being provided with a third valve.
5. The density measurement device of claim 1, wherein the density measurement device further comprises:
and one end of the overflow pipeline is connected with the upper part of the reaction box, and the other end of the overflow pipeline is connected into the slurry discharging pit.
6. The density measurement device of claim 5 wherein the density measurement conduit communicates with a flushing conduit, the flushing conduit being located at an outlet end of the densitometer, a fifth valve being provided on the flushing conduit, the fifth valve being in communication with the controller;
the measuring pipeline is further connected with a second emptying pipeline, the second emptying pipeline is located at the inlet of the densimeter feeding pump, the other end of the second emptying pipeline is connected to the pulp discharging pit, a sixth valve is arranged on the second emptying pipeline, and the sixth valve is in communication connection with the controller.
7. The density measurement device of claim 1, wherein the density measurement device further comprises:
the device comprises a reaction tank, a first emptying pipeline, a second emptying pipeline and a fourth valve, wherein one end of the first emptying pipeline is connected with the bottom of the reaction tank, the other end of the first emptying pipeline is connected to a slurry discharging pit, and the fourth valve is arranged on the first emptying pipeline.
8. The density measurement device of claim 7 further comprising a stirring device located in a lower portion of the reaction tank, the stirring device comprising an actuator and a driver in communication with the controller.
9. The density measurement device of any one of claims 1 to 8 wherein the two ends of the densitometer feed pump are connected to the measurement pipe by an elastic hose; the measuring device further comprises a liquid level meter which is arranged on the upper portion of the reaction box and used for measuring the liquid level in the reaction box, and the liquid level meter is in communication connection with the controller.
10. A desulfurization apparatus, characterized by comprising:
a density measurement device as claimed in any one of claims 1 to 9.
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| CN202321512835.6U CN219737176U (en) | 2023-06-14 | 2023-06-14 | Density measuring device and desulfurizing device |
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| CN202321512835.6U CN219737176U (en) | 2023-06-14 | 2023-06-14 | Density measuring device and desulfurizing device |
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