Flue gas particulate matter detecting and sampling device

Abstract

The utility model relates to the field of flue gas detection, and discloses a flue gas particulate matter detecting and sampling device which comprises a gas inlet pipe and a gas suction pump, a filtering mechanism is installed between the gas inlet pipe and the gas suction pump, a collecting mechanism is installed at the bottom of the filtering mechanism, and the filtering mechanism comprises a communicating pipe. The communicating pipe is fixedly connected between the air inlet pipe and the air suction pump, a shaft rod is movably installed in the communicating pipe, two spiral scraping plates are fixedly installed outside the shaft rod, a rocking disc is installed at the top end of the shaft rod, a filter screen is installed at the position, close to the rear end, in the communicating pipe, and a material guiding pipe is installed at the bottom of the communicating pipe. Through a filter screen and a spiral scraper, particles in the flue gas can be filtered, and collection of the particles and cleaning of the filter screen are facilitated; and through lifting of the lifting cylinder, the depth of the interior of the collecting cylinder can be changed, and extraction of smoke particles and cleaning of the interior of the smoke particles are facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of flue gas detection, concretely to a flue gas particulate matter detection sampling device. BACKGROUND

[0002] Flue gas particulate matter refers to fixed body or liquid particles suspended in flue gas, which usually comes from combustion processes such as industrial production, thermal power generation, and vehicle exhaust emissions. In order to reduce and control the pollution of flue gas particulate matter to the environment, it is necessary to sample and detect flue gas particulate matter when it is discharged.

[0003] Publication No. CN217980942U provides a flue gas particulate matter concentration detection sampling device, which comprises a shell and an air suction pump. The input end of the air suction pump is in communication with the right side of the shell. The left side of the shell is fixedly connected with an air inlet pipe. The upper surface of the air inlet pipe is fixedly installed with a gas flow meter.

[0004] The above sampling device can better scatter the filtered particulate matter into the sampling cylinder, improving the sampling efficiency. Since the particulate matter is collected by vibration scattering, the particulate matter with strong adsorption force accumulates for a long time, causing the filter screen to be blocked, which is not convenient for overall scraping and cleaning. After the particulate matter is collected, the inside of the collection cylinder is deep, which is not convenient for extraction and internal cleaning. UTILITY MODEL CONTENT

[0005] The utility model aims to provide a flue gas particulate matter detection sampling device to solve the technical problems in the background art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] A flue gas particulate matter detection sampling device comprises an air inlet pipe and an air suction pump. A filter mechanism is installed between the air inlet pipe and the air suction pump. A collection mechanism is installed at the bottom of the filter mechanism. The filter mechanism comprises a communication pipe, which is fixedly connected between the air inlet pipe and the air suction pump. An axle is movably installed inside the communication pipe. Two spiral scrapers are fixedly installed on the outside of the axle. A rocking disc is installed at the top end of the axle. A filter screen is installed at the rear end inside the communication pipe. A material guide pipe is installed at the bottom of the communication pipe. A first screw groove is provided at the bottom end of the outside of the material guide pipe.

[0008] Preferably, the axle and the rocking disc are fixedly connected, and the axle is movably and rotatably arranged inside the communication pipe.

[0009] Preferably, the outer wall of the spiral scraper and the inner wall of the filter screen are slidably arranged, and the two spiral scrapers are fixedly connected with each other through a support rod and the axle.

[0010] Preferably, the material guide pipe is vertically arranged at the bottom of the communicating pipe, and the material guide pipe is in communication with the interior of the communicating pipe.

[0011] Preferably, the collecting mechanism comprises a collecting cylinder connected at the bottom of the material guide pipe, a lifting cylinder movably arranged in the interior of the collecting cylinder, a second screw groove arranged at the bottom end of the interior of the collecting cylinder, a screw disc arranged at the bottom of the lifting cylinder, a bottom disc movably arranged at the bottom end of the interior of the collecting cylinder, four guide rods fixedly arranged at the top of the bottom disc, and a rotating disc fixedly connected at the bottom end of the collecting cylinder and penetrating through the bottom of the bottom disc.

[0012] Preferably, the screw disc is in threaded connection with the second screw groove of the inner wall of the collecting cylinder, and the outer wall of the lifting cylinder is matched with the diameter of the inner wall of the top end of the collecting cylinder.

[0013] Preferably, the screw disc is sleeved on the outside of the four guide rods and is arranged in up-down sliding mode, and the bottom disc is fixedly connected with the rotating disc through a rotating shaft.

[0014] Compared with the prior art, the device has the following beneficial effects:

[0015] 1) The detection sampling device is provided with a filtering mechanism, a suction pump is arranged to suck flue gas into the communicating pipe, the filter screen can filter particles in the flue gas, the shaft rod drives the two spiral scrapers to rotate by shaking the shaking disc, and the spiral scrapers can scrape off the filtered flue gas particles, so that the particles are collected and the filter screen is cleaned.

[0016] 2) The detection sampling device is provided with a collecting mechanism, the rotating disc drives the bottom disc, the guide rod and the screw disc to rotate, the screw disc drives the lifting cylinder to lift under the action of the screw thread, the depth of the interior of the collecting cylinder can be changed, and the flue gas particles are extracted and the interior is cleaned. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a whole structure schematic view of the flue gas particle detection sampling device of the embodiment of the utility model;

[0018] Figure 2 It is an internal structure schematic view of the filtering mechanism in the embodiment of the utility model;

[0019] Figure 3 It is an internal structure schematic view of the collecting mechanism in the embodiment of the utility model;

[0020] Figure 4 It is a whole internal front view structure schematic view in the embodiment of the utility model.

[0021] In the figure: 1, air inlet pipe; 2, air suction pump; 3, filtering mechanism; 4, collecting mechanism; 5, communication pipe; 6, shaft rod; 7, spiral scraper; 8, rocking disc; 9, filter screen; 10, material guide pipe; 11, first screw groove; 12, collecting cylinder; 13, lifting cylinder; 14, second screw groove; 15, screw disc; 16, guide rod; 17, base plate; 18, rotating disc. DETAILED DESCRIPTION

[0022] 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. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0023] Embodiment one

[0024] In combination Figures 1-4 A flue gas particulate matter detection sampling device, comprising an air inlet pipe 1 and an air suction pump 2, a filtering mechanism 3 is installed between the air inlet pipe 1 and the air suction pump 2, and a collecting mechanism 4 is installed at the bottom of the filtering mechanism 3.

[0025] In combination Figure 2 Further, the filtering mechanism 3 comprises a communication pipe 5, the communication pipe 5 is fixedly connected between the air inlet pipe 1 and the air suction pump 2, a shaft rod 6 is movably installed in the communication pipe 5, two spiral scrapers 7 are fixedly installed on the outer portion of the shaft rod 6, a rocking disc 8 is installed at the top end of the shaft rod 6, a filter screen 9 is installed at the rear end inside the communication pipe 5, a material guide pipe 10 is installed at the bottom of the communication pipe 5, and a first screw groove 11 is arranged at the bottom end of the outer portion of the material guide pipe 10.

[0026] The shaft rod 6 and the rocking disc 8 are fixedly connected, the shaft rod 6 is movably arranged inside the communication pipe 5, and the shaft rod 6 is rotated by the rocking disc 8 to drive the two spiral scrapers 7 to rotate.

[0027] The outer wall of the spiral scraper 7 and the inner wall of the filter screen 9 are slidably arranged, the two spiral scrapers 7 are fixedly connected between the supporting rod and the shaft rod 6, and the flue gas particulate matter collected by the filter screen 9 is scraped off by the spiral scraper 7.

[0028] The material guide pipe 10 is vertically arranged at the bottom of the communication pipe 5, the material guide pipe 10 and the inside of the communication pipe 5 are interconnected, and the flue gas particulate matter is discharged through the material guide pipe 10 under the action of gravity for collection.

[0029] Specifically, the flue gas in the flue is sucked into the communicating pipe 5 by the suction pump 2, the particles in the flue gas are filtered by the filter screen 9, and the filtered flue gas is discharged through the exhaust port of the suction pump 2. By shaking the rocker 8, the shaft rod 6 drives the two spiral scrapers 7 to rotate, and the particles filtered on the inner wall of the filter screen 9 are scraped off.

[0030] Example two

[0031] Referring to Figure 3 And on the basis of example one, it is further obtained that the collecting mechanism 4 includes a collecting cylinder 12 connected to the bottom of the material guide pipe 10, a lifting cylinder 13 movably installed inside the collecting cylinder 12, a second threaded groove 14 provided at the bottom end inside the collecting cylinder 12, a screw disc 15 installed at the bottom of the lifting cylinder 13, a bottom disc 17 movably installed at the bottom end inside the collecting cylinder 12, four guide rods 16 fixedly installed at the top of the bottom disc 17, and a rotating disc 18 fixedly connected to the bottom end of the collecting cylinder 12 and penetrating through the bottom of the bottom disc 17.

[0032] The screw disc 15 is in threaded connection with the second threaded groove 14 on the inner wall of the collecting cylinder 12, the outer wall of the lifting cylinder 13 matches the diameter of the top inner wall of the collecting cylinder 12, the collecting cylinder 12 is connected to the material guide pipe 10, and the lifting cylinder 13 is used for collecting and taking out particles.

[0033] The screw disc 15 is sleeved on the outside of the four guide rods 16 and is arranged in an up-down sliding manner, the bottom disc 17 is fixedly connected with the rotating disc 18 through a rotating shaft, and the screw disc 15 is used to drive the lifting cylinder 13 to lift, so as to reduce the depth inside and facilitate cleaning.

[0034] Specifically, by connecting the collecting cylinder 12 with the material guide pipe 10, the scraped flue gas particles fall into the collecting cylinder 12, and when the flue gas particles are taken out for detection, rotating the rotating disc 18 through the connection of the rotating shaft makes the bottom disc 17 rotate and drives the four guide rods 16 and the screw disc 15 to rotate. The screw disc 15 drives the lifting cylinder 13 to rise under the action of threads, so that the flue gas particles are exposed for easy taking out and cleaning.

[0035] In actual operation, the air inlet pipe 1 is connected with the flue, the flue gas is sucked in by the suction pump 2, the particles in the flue gas are filtered and collected, and the filtered flue gas is discharged through the exhaust port of the suction pump 2;

[0036] When filtering and cleaning, the flue gas particles are filtered on the inner wall of the filter screen 9, the shaft rod 6 drives the two spiral scrapers 7 to rotate by shaking the rocker 8, and the flue gas particles in the filter screen 9 are scraped and cleaned, so as to facilitate the collection of particles and the cleaning of the filter screen 9;

[0037] When collecting and taking out, the collecting cylinder 12 is connected with the bottom end of the guide pipe 10, the scraped flue gas particles fall into the lifting cylinder 13 through the guide pipe 10, the collecting cylinder 12 is taken out, the rotating disc 18 is rotated, the rotating disc 18 drives the bottom disc 17 to rotate through the connecting shaft, and the four guide rods 16 and the screw disc 15 are rotated, so that the screw disc 15 drives the lifting cylinder 13 to lift under the action of the second screw groove 14, the depth inside the lifting cylinder 13 is changed, so as to facilitate the extraction of the flue gas particles and the cleaning inside.

[0038] Although the embodiments of the present application have been shown and described, it should be understood by those ordinary skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A flue gas particulate matter detection sampling device, comprising an air inlet pipe (1) and an air suction pump (2), characterized in that: The filter mechanism (3) is installed between the air inlet pipe (1) and the air suction pump (2), and the bottom of the filter mechanism (3) is provided with a collecting mechanism (4). The filter mechanism (3) comprises a communication pipe (5) which is fixedly connected between the air inlet pipe (1) and the air suction pump (2), the inside of the communication pipe (5) is movably provided with a shaft rod (6), the outside of the shaft rod (6) is fixedly provided with two spiral scrapers (7), the top end of the shaft rod (6) is provided with a rocking disc (8), the inside of the rear end of the communication pipe (5) is provided with a filter screen (9), the bottom of the communication pipe (5) is provided with a material guide pipe (10), and the outside of the bottom end of the material guide pipe (10) is provided with a first screw groove (11).

2. The flue gas particulate matter detection sampling device according to claim 1, characterized in that: The shaft rod (6) is fixedly connected with the rocking disc (8), and the shaft rod (6) is movably arranged in the inside of the communication pipe (5).

3. The flue gas particulate matter detection sampling device according to claim 1, characterized in that: The outer wall of the spiral scraper (7) is slidably arranged with the inner wall of the filter screen (9), and the two spiral scrapers (7) are fixedly connected with each other through the support rod and the shaft rod (6).

4. The flue gas particulate matter detection sampling device according to claim 1, characterized in that: The material guide pipe (10) is vertically arranged at the bottom of the communication pipe (5), and the material guide pipe (10) is communicated with the inside of the communication pipe (5).

5. The flue gas particulate matter detection sampling device according to claim 1, characterized in that: The collecting mechanism (4) comprises a collecting cylinder (12) which is connected at the bottom of the material guide pipe (10), the inside of the collecting cylinder (12) is movably provided with a lifting cylinder (13), the inside of the bottom end of the collecting cylinder (12) is provided with a second screw groove (14), the bottom of the lifting cylinder (13) is provided with a screw disc (15), the inside of the bottom end of the collecting cylinder (12) is movably provided with a bottom disc (17), the top of the bottom disc (17) is fixedly provided with four guide rods (16), and the bottom of the bottom disc (17) is fixedly connected with a rotating disc (18) through the bottom end of the collecting cylinder (12).

6. A flue gas particulate matter detection sampling device according to claim 5, characterised in that: The screw disc (15) is threadedly connected with the second screw groove (14) of the inner wall of the collecting cylinder (12), and the outer wall of the lifting cylinder (13) is matched in diameter with the top end of the inner wall of the collecting cylinder (12).

7. The flue gas particulate matter detection sampling device according to claim 5, characterized in that: The screw disc (15) is sleeved on the outside of the four guide rods (16) and is slidably arranged up and down, and the bottom disc (17) is fixedly connected with the rotating disc (18) through the rotating shaft.

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