Rapid detection device for mercury concentration in gas particulate matter

Abstract

The utility model discloses a rapid detection device for mercury concentration in gas particulate matters, which comprises a detection part and a flue gas conveying part, the detection part comprises a detection cylinder, a detection cover plate is fixed at the top of the detection cylinder; the supporting legs are fixed on the outer wall of the detection cylinder; and the driving motor is fixed on the outer wall of the top of the detection cover plate. The mercury concentration detection probe can be used for detecting the mercury concentration in gas particulate matters, the driving motor can be used for driving the stirring column and the stirring blades to rotate, and the stirring column and the stirring blades stir the gas particulate matters in the detection cylinder body in the rotating process; by arranging a first three-way valve and a second three-way valve, the gas particulate matter can be more uniformly filled in the detection cylinder, and by arranging a second three-way valve and a first three-way valve, the movement path of the gas particulate matter can be adjusted, so that when the mercury concentration in the gas particulate matter does not need to be detected, the mercury can be quickly discharged through a gas inlet pipe, a first connecting pipe and a third connecting pipe.

Description

TECHNICAL FIELD

[0001] The utility model relates to mercury concentration detection technical field especially relates to a kind of quick detection device of mercury concentration in gaseous particulate matter. BACKGROUND

[0002] In prior art, coal-fired flue gas mercury emission is the main artificial emission source of atmospheric mercury pollution. Mercury has volatility, and the existence form of mercury in coal-fired flue gas is usually three: gaseous oxidized mercury, gaseous elemental mercury and particulate mercury. The mercury adsorbed by particles exists in the form of elemental or oxidized state, and the dust collector can remove particulate mercury during the collection of particulate matter. Particulate mercury usually exists in particulate matter in combination with fly ash. Therefore, when flue gas is discharged, in order to ensure that the discharge meets the safety standard, it is necessary to detect the mercury concentration in flue gas by using a detection device.

[0003] Through retrieval, the patent with patent application number 201921477545.6 discloses a continuous monitoring device for mercury concentration in particulate matter, which comprises: a particulate matter feeding unit, including a particulate matter bin, a screw conveyor arranged at the lower end of the outlet of the particulate matter bin, a weighing assembly connected to the output end of the screw conveyor, and a level meter arranged in the weighing assembly; a particulate matter conversion unit, comprising: at least two conveying pipes communicating with the outlet of the weighing assembly, a first heating conversion chamber and a second heating conversion chamber respectively communicating with the conveying pipes; a controller connected to the screw conveyor, the weighing assembly and the level meter respectively.

[0004] The continuous monitoring device for mercury concentration in particulate matter in the above-mentioned patent has the following disadvantages: although the first heating conversion chamber and the second heating conversion chamber alternately realize the alternation of mercury form, so that the mercury analyzer analyzes the mercury concentration, but during the analysis process, it is impossible to ensure that the mercury elements are uniformly filled in the first heating conversion chamber and the second heating conversion chamber, so that the accuracy of the detection result has errors. UTILITY MODEL CONTENT

[0005] The utility model aims at solving the shortcomings in the prior art, and provides a quick detection device for mercury concentration in gaseous particulate matter.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0007] A quick detection device for mercury concentration in gaseous particulate matter, comprising a detection part and a flue gas conveying part, the detection part comprising:

[0008] Detection cylinder: a detection cover plate is fixed at the top of the detection cylinder;

[0009] Supporting leg: it is fixed to the outer wall of the detection cylinder;

[0010] Driving motor: it is fixed to the outer wall at the top of the detection cover plate;

[0011] Stirring column: it is connected to the output end of the driving motor through a shaft coupling, and stirring blades are welded on the outer wall of the stirring column;

[0012] Mercury concentration detection probe: it is fixed on the top of the detection cover plate by screws.

[0013] As a further scheme of the utility model: the flue gas conveying part includes pipeline one and pipeline two, the pipeline one includes connecting pipe two and connecting pipe three, the connecting pipe two and the connecting pipe three are fixed on the outer walls of both sides of the detection cylinder by welding respectively.

[0014] As a further scheme of the utility model: the pipeline two includes connecting pipe one and horizontal plate, the horizontal plate is welded on the side wall of the detection cylinder, and the connecting pipe one is fixed in the inner wall of the through hole on the surface of the horizontal plate by embedding.

[0015] As a further scheme of the utility model: the connecting pipe one and the connecting pipe three are connected through three-way valve one.

[0016] As a further scheme of the utility model: the connecting pipe two and the connecting pipe one are connected through three-way valve two.

[0017] As a further scheme of the utility model: the flue gas conveying part further includes air inlet pipe and air outlet pipe, the air inlet pipe is connected to the end of three-way valve two through flange, and the air outlet pipe is connected to the end of three-way valve one through flange.

[0018] As a further scheme of the utility model: the outer wall of the stirring column is welded with an extension rod, and the end of the extension rod away from the stirring column is fixed with a scraping plate.

[0019] As a further scheme of the utility model: the outer wall of the bottom of the detection cylinder is fixed with a deslagging valve.

[0020] Compared with the prior art, the utility model provides a kind of quick detection device of mercury concentration in gaseous particulate matter, with the following beneficial effects:

[0021] Mercury concentration detection probe can be used to detect the mercury concentration in gaseous particulate matter, and the driving motor can drive the stirring column and stirring blades to rotate, and the stirring column and stirring blades can stir the gaseous particulate matter in the detection cylinder during rotation, so that the gaseous particulate matter is more evenly filled in the detection cylinder.

[0022] The three-way valve two and the three-way valve one are arranged, the movement path of the gaseous particles can be adjusted, when the mercury concentration in the gaseous particles does not need to be detected, the gaseous particles can be quickly discharged through the air inlet pipe, the connecting pipe one and the connecting pipe three, when the mercury concentration needs to be detected, the gaseous particles are guided into the detection cylinder body through the air inlet pipe and the connecting pipe two, and the mercury concentration detection probe is used for detecting the mercury concentration.

[0023] The scraping plate is arranged and can rotate along the circumferential inner wall of the detection cylinder body under the driving of the driving motor, the gaseous particles adhered to the circumferential inner wall of the detection cylinder body are scraped in the rotating process of the scraping plate, and therefore the gaseous particles are prevented from adhering to the inner wall of the detection cylinder body.

[0024] The parts not involved in the device are the same as or can be realized by the prior art. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 A whole structure schematic view of a rapid detection device for a mercury concentration in gaseous particles is provided in the utility model.

[0026] Figure 2 A side direction structure schematic view of a rapid detection device for a mercury concentration in gaseous particles is provided in the utility model.

[0027] Figure 3 A sectional structure schematic view of a rapid detection device for a mercury concentration in gaseous particles is provided in the utility model.

[0028] Figure 4 A detection part main body structure schematic view of a rapid detection device for a mercury concentration in gaseous particles is provided in the utility model.

[0029] In the drawing: 1-detection cover plate, 2-three-way valve one, 3-connecting pipe one, 4-cross plate, 5-three-way valve two, 6-air inlet pipe, 7-connecting pipe two, 8-air outlet pipe, 9-driving motor, 10-discharge valve, 11-connecting pipe three, 12-scraping plate, 13-mercury concentration detection probe, 14-stirring column, 15-stirring blade, 16-elongated rod, 17-supporting leg, 18-detection cylinder body. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0031] In the description of the utility model, it is understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. Example 1

[0032] A kind of fast detection device of mercury concentration in gaseous particulate matter, to improve the accuracy of detection, as shown in Figures 1-4 It includes detection part and flue gas conveying part, the detection part includes:

[0033] Detection cylinder 18: its top is fixed with detection cover plate 1 by bolt;

[0034] Support leg 17: it is fixed to the outer wall of detection cylinder 18 by bolt;

[0035] Drive motor 9: it is fixed to the outer wall of the top of detection cover plate 1 by bolt;

[0036] Stirring column 14: it is connected to the output end of drive motor 9 by coupling, and stirring blade 15 is welded on the outer wall of stirring column 14;

[0037] Mercury concentration detection probe 13: it is fixed to the top of detection cover plate 1 by screw;

[0038] By being provided with flue gas conveying part, the gaseous particulate matter to be detected can be conveyed to the inside of detection cylinder 18, when the gaseous particulate matter is filled in the inside of detection cylinder 18, the mercury concentration in the gaseous particulate matter can be detected using mercury concentration detection probe 13, in the process of detection, stirring column 14 and stirring blade 15 can be driven to rotate using drive motor 9, the gaseous particulate matter in the inside of detection cylinder 18 is agitated in the process of rotation of stirring column 14 and stirring blade 15, so that the gaseous particulate matter is more evenly filled in the inside of detection cylinder 18, after the gaseous particulate matter is evenly filled in the inside of detection cylinder 18, the accuracy of mercury concentration data detection is effectively improved after detection of mercury concentration detection probe 13, so that the error of detection result of mercury concentration detection probe 13 caused by uneven mixing of gaseous particulate matter in the inside of detection cylinder 18 is effectively avoided, and detection cylinder 18 has electric heating function, mercury in flue gas can be converted into gaseous mercury during detection, so that mercury concentration detection probe 13 can better detect mercury concentration.

[0039] Further, the flue gas conveying part comprises the pipeline one and the pipeline two, the pipeline one comprises the connecting pipe two 7 and the connecting pipe three 11, the connecting pipe two 7 and the connecting pipe three 11 are fixed on the outer wall of the detection cylinder body 18 through welding respectively, the pipeline two comprises the connecting pipe one 3 and the cross plate 4, the cross plate 4 is welded on the side wall of the detection cylinder body 18, and the connecting pipe one 3 is fixed in the through hole of the cross plate 4 through embedding, the connecting pipe one 3 and the connecting pipe three 11 are connected through the three-way valve one 2, and the connecting pipe two 7 and the connecting pipe one 3 are connected through the three-way valve two 5, the flue gas conveying part further comprises the air inlet pipe 6 and the air outlet pipe 8, the air inlet pipe 6 is connected to the end of the three-way valve two 5 through flange, and the air outlet pipe 8 is connected to the end of the three-way valve one 2 through flange.

[0040] Under normal conditions, when the mercury concentration in the gas particles does not need to be detected, the valve connecting the three-way valve two 5 and the connecting pipe two 7 is closed, the valve connecting the air inlet pipe 6 and the three-way valve two 5 is opened, the valve connecting the three-way valve one 2 and the connecting pipe three 11 is closed, and the valve connecting the connecting pipe one 3 and the three-way valve one 2 is opened, so that the gas particles are normally discharged through the air inlet pipe 6, the connecting pipe one 3 and the air outlet pipe 8, when the mercury concentration in the gas particles needs to be detected, the valve connecting the three-way valve two 5 and the connecting pipe two 7 is opened, the valve connecting the air inlet pipe 6 and the three-way valve two 5 is closed, the valve connecting the three-way valve one 2 and the connecting pipe three 11 is opened, and the valve connecting the connecting pipe one 3 and the three-way valve one 2 is closed, so that the gas particles are introduced into the detection cylinder body 18 through the air inlet pipe 6 and the connecting pipe two 7, and the mercury concentration in the gas particles is discharged through the detection cylinder body 18 and the connecting pipe three 11 after detection, and finally discharged through the air outlet pipe 8.

[0041] When the mercury concentration in the gas particles needs to be detected, the valve connecting the three-way valve two 5 and the connecting pipe two 7 is opened, the valve connecting the air inlet pipe 6 and the three-way valve two 5 is closed, the valve connecting the three-way valve one 2 and the connecting pipe three 11 is opened, and the valve connecting the connecting pipe one 3 and the three-way valve one 2 is closed, so that the gas particles are introduced into the detection cylinder body 18 through the air inlet pipe 6 and the connecting pipe two 7, and the mercury concentration in the gas particles is discharged through the detection cylinder body 18 and the connecting pipe three 11 after detection, and finally discharged through the air outlet pipe 8. Embodiment 2

[0042] A kind of gas particle mercury concentration rapid detection device, such as Figures 1-4As shown in the drawings, in order to avoid the gas particles from adhering to the inner wall of the detection cylinder 18, the embodiment is supplemented as follows on the basis of the embodiment 1: the outer wall of the stirring column 14 is welded with an extension rod 16, and the end of the extension rod 16 away from the stirring column 14 is fixed with a scraping plate 12 through bolts;

[0043] The scraping plate 12 is arranged to rotate along the circumferential inner wall of the detection cylinder 18 under the driving of the driving motor 9, and the scraping plate 12 scrapes the particles adhering to the circumferential inner wall of the detection cylinder 18 in the process of rotation, so as to avoid the particles from adhering to the inner wall of the detection cylinder 18;

[0044] The outer wall of the bottom of the detection cylinder 18 is fixed with a slag discharge valve 10 through bolts;

[0045] The slag discharge valve 10 can guide the scraped particles out after being opened, so as to avoid the particles from accumulating at the bottom of the detection cylinder 18.

[0046] The above is only the preferred specific implementation of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A device for rapid detection of mercury concentration in gas particulate matter, comprising a detection unit and a flue gas delivery unit, characterized in that, The detection part comprises: The detection cylinder (18) is fixed with the detection cover plate (1) at the top; The support leg (17) is fixed to the outer wall of the detection cylinder (18); The driving motor (9) is fixed to the outer wall of the top of the detection cover plate (1); The stirring column (14) is connected to the output end of the driving motor (9) through a coupling, and the stirring blade (15) is welded to the outer wall of the stirring column (14); The mercury concentration detection probe (13) is fixed to the top of the detection cover plate (1) by screws.

2. The device for rapid detection of mercury concentration in gas particulate matter according to claim 1, characterized in that, The flue gas conveying part comprises a pipeline one and a pipeline two, the pipeline one comprises a connecting pipe two (7) and a connecting pipe three (11), the connecting pipe two (7) and the connecting pipe three (11) are respectively fixed on the outer walls of the two sides of the detection cylinder (18) by welding.

3. The device for rapid detection of mercury concentration in gas particulate matter according to claim 2, characterized in that, The pipeline two comprises a connecting pipe one (3) and a cross plate (4), the cross plate (4) is welded to the side wall of the detection cylinder (18), and the connecting pipe one (3) is fixed to the inner wall of the through hole on the surface of the cross plate (4) by embedding.

4. The device for rapid detection of mercury concentration in gas particulate matter according to claim 3, characterized in that, The connecting pipe one (3) and the connecting pipe three (11) are connected through a three-way valve one (2).

5. The device for rapid detection of mercury concentration in gas particulate matter according to claim 4, characterized in that, The connecting pipe two (7) and the connecting pipe one (3) are connected through a three-way valve two (5).

6. The device for rapid detection of mercury concentration in gas particulate matter according to claim 5, wherein, The flue gas conveying part further comprises an air inlet pipe (6) and an air outlet pipe (8), the air inlet pipe (6) is connected to the end of the three-way valve two (5) through a flange, and the air outlet pipe (8) is connected to the end of the three-way valve one (2) through a flange.

7. The device for rapid detection of mercury concentration in gas particulate matter according to claim 6, characterized in that, The stirring column (14) is welded with an extension rod (16) on the outer wall, and the extension rod (16) is fixed with a scraping plate (12) at the end away from the stirring column (14).

8. The device for rapid detection of mercury concentration in gas particulate matter according to claim 7, characterized in that, The outer wall of the bottom of the detection cylinder (18) is fixed with a deslagging valve (10).

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