Respiratory dust separation device based on electrocoagulation

Abstract

The respirable dust separation device comprises a horizontal pipeline and a detection pipeline, the detection pipeline is installed at the position of a pipe opening in the right end of the horizontal pipeline, an electrocoagulation flow guide separation structure is installed in the horizontal pipeline, and a detection separation circulation structure is installed on the detection pipeline; a dust leakage opening is formed in the lower wall surface of the joint of the horizontal pipeline and the detection pipeline, and a cloth bag filtering structure is mounted below the dust leakage opening; the invention relates to the technical field of respirable dust separation, and solves the problems that the existing respirable dust separation equipment can cause accumulation along with the increase of working time, needs to be cleaned frequently, is poor in continuity, needs a worker to maintain a separation structure, is low in efficiency and is tedious to operate.

Description

Technical Field

[0001] The invention relates to the technical field of respirable dust separation, in particular to a respirable dust separation device based on electrical coagulation. Background Art

[0002] Respirable dust refers to dust with an aerodynamic equivalent diameter of less than 7.1μm that can enter the human lungs through breathing. This type of dust is harmful to human health and is one of the sources of pneumoconiosis. In existing mines, a large amount of respirable dust will float in the air due to mining. If workers inhale respirable dust for a long time in dusty workplaces, they will develop pneumoconiosis and endanger their personal safety.

[0003] At present, there are three main technologies used for respirable dust separation at home and abroad: ceramic separation, impact type, and cyclone type. However, these three separation methods require the separated dust to be manually cleaned to ensure the long-term use of the separation device, which makes it difficult to maintain continuous detection of respirable dust. Frequent cleaning is required, and the treatment sustainability is poor. As the use time increases, the dust separation effect is poor and the separation efficiency is low, which affects the working environment in the mine. Summary of the invention

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: a respirable dust separation device based on electrocoagulation, comprising: a horizontal pipe and a detection pipe, the detection pipe is installed at the pipe mouth position of the right end of the horizontal pipe, and the right end of the detection pipe is gradually inclined upward relative to the left end, an electrocoagulation diversion separation structure is installed in the horizontal pipe, a detection separation circulation structure is installed on the detection pipe, a dust leakage port is opened on the lower wall surface of the connection between the horizontal pipe and the detection pipe, and a bag filter structure is installed below the dust leakage port;

[0005] The electrocoagulation diversion separation structure includes: an air inlet hopper, a separation baffle, a positive electrode column, a negative electrode column, a pair of cleaning brushes, a pair of cleaning drive components and a plurality of flow columns;

[0006] The air inlet scoop is installed at the pipe mouth on the left end of the horizontal pipe, the partition baffle is horizontally installed at the middle position of the left end of the inner wall of the horizontal pipe, the positive electrode column is installed above the partition baffle, and the negative electrode column is installed below the partition baffle. A pair of drive cleaning components are installed on the upper and lower walls of the horizontal pipe, a pair of cleaning brushes are respectively mounted on the positive electrode column and the negative electrode column, and a number of flow columns are installed on the right side of the partition baffle.

[0007] Preferably, a pair of driving cleaning components each comprises: a driving box, a mounting cavity, a motor box, a driving motor, a screw and a moving block;

[0008] The drive box is installed on the inner wall of the horizontal pipe, the installation cavity is opened inside the drive box, the motor box is installed behind the drive box, the drive motor is installed inside the motor box, both ends of the spiral screw are embedded in the installation cavity, one end of the spiral screw is connected to the output end of the drive motor, the moving block is installed on the spiral screw through threaded fitting, and the moving block is connected to the cleaning brush.

[0009] Preferably, the spiral screw is embedded in the inner wall surface of the installation cavity through a bearing.

[0010] Preferably, the detection separation circulation structure comprises: a detection controller, a dust detection probe, an exhaust switch valve, a mounting seat, a circulation air pump, an air suction pipe and a circulation air delivery pipe;

[0011] The detection controller is installed at the left end of the upper outer wall of the detection pipeline, the dust detection probe is embedded in the inner wall of the detection pipeline and electrically connected to the detection controller, the exhaust switch valve is embedded in the pipe mouth at the right end of the detection pipeline, the mounting seat is installed on the right side of the detection controller, the circulating air pump is installed above the mounting seat, one end of the suction pipe is installed on the air inlet of the circulating air pump and the other end penetrates into the interior of the detection pipeline, one end of the circulating air pipe is installed on the circulating air pump and the other end is connected to the air intake hopper.

[0012] Preferably, a suction hopper is installed on the suction pipe.

[0013] Preferably, a support frame is installed on the circulating gas pipeline.

[0014] Preferably, the bag filter structure comprises: a dust collecting box, a dust collecting chamber, a fixed outer frame, a dust collecting bag and two pairs of fixed pressing plates;

[0015] The dust collecting box is installed below the dust leakage port opened on the lower wall surface of the connection between the horizontal pipe and the detection pipe, the dust collecting cavity is opened inside the dust collecting box, the fixed outer frame is installed on the upper position of the inner wall surface of the dust collecting cavity, and the dust collecting bag is installed on the fixed outer frame through two pairs of fixed pressure plates.

[0016] Preferably, the fixed pressure plate is mounted on the fixed outer frame by means of fixing bolts.

[0017] Preferably, a protective grille is installed on the lower wall surface of the dust collecting box.

[0018] Beneficial effects of the present invention: This scheme uses electric coagulation to separate and treat respirable dust. It is a dust separation technology based on the electric field effect. It combines the electric field force and the coagulation effect of particulate matter to achieve effective separation of respirable dust. Under the action of the electric field force, dust particles with opposite charges will produce differences in speed or direction, thereby achieving effective coagulation to form larger particle clusters. These large particle clusters are then effectively collected by electrostatic precipitators or other collection devices, thereby avoiding the dust accumulation problem in the prior art and ensuring the long-term continuous use of the respirable dust separation device. It solves the problem that the existing respirable dust separation equipment will cause accumulation as the working time increases, requires frequent cleaning, has poor sustainability, requires staff to maintain its separation structure, has low efficiency, and is cumbersome to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is the main cross-sectional view of the present invention.

[0020] Figure 2 It is a three-dimensional diagram of the cleaning brush of the present invention.

[0021] Figure 3 It is a side sectional view of the cleaning drive assembly of the present invention.

[0022] Figure 4 It is a three-dimensional diagram of the bag filter structure of the present invention.

[0023] Figure 5 It is the main cross-sectional view of the bag filter structure of the present invention.

[0024] In the figure: 1-horizontal pipeline; 2-detection pipeline; 3-dust leakage port; 4-air inlet hopper; 5-partition baffle; 6-positive electrode column; 7-negative electrode column; 8-cleaning brush; 9-flow column; 10-drive box; 11-installation cavity; 12-motor box; 13-drive motor; 14-screw; 15-moving block; 16-bearing; 17-detection controller; 18-dust detection probe; 19-exhaust switch valve; 20-mounting seat; 21-circulating air pump; 22-suction pipe; 23-circulating air supply pipe; 24-suction hopper; 25-support frame; 26-dust box; 27-dust collecting cavity; 28-fixed outer frame; 29-dust collecting bag; 30-fixed pressure plate; 31-fixing bolt; 32-protective grille. DETAILED DESCRIPTION

[0025] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present invention.

[0026] like Figure 1-5As shown, a respirable dust separation device based on electrocoagulation is mainly composed of a horizontal pipe 1, a detection pipe 2, an electrocoagulation diversion separation structure, a detection separation circulation structure, a dust leakage port 3 and a bag filter structure. The horizontal pipe 1 is connected with the detection pipe 2 to form the main body of the device, and the right end of the detection pipe 2 is gradually inclined upward relative to the left end.

[0027] The electrocoagulation diversion separation structure is mainly composed of an air inlet hopper 4, a separation baffle 5, a positive electrode column 6, a negative electrode column 7, a pair of cleaning brushes 8, a pair of cleaning drive components and a plurality of flow columns 9.

[0028] The air inlet scoop 4 is installed at the pipe mouth at the left end of the horizontal pipe 1, the partition baffle 5 is horizontally installed at the middle position of the left end of the inner wall of the horizontal pipe 1, the positive electrode column 6 is installed above the partition baffle 5, and the negative electrode column 7 is installed below the partition baffle 5. A pair of driving cleaning components are installed on the upper and lower walls of the horizontal pipe 1, a pair of cleaning brushes 8 are respectively mounted on the positive electrode column 6 and the negative electrode column 7, and a number of flow columns 9 are installed on the right side of the partition baffle 5.

[0029] When using the electro-coagulation and diversion separation structure, the dusty airflow is sucked into the horizontal pipe 1 through the air inlet hopper 4, and the dusty airflow is diverted by the partition baffle 5 to form two upper and lower airflows. The dust in the airflow carries corresponding electric charges under the action of the electric field of the positive electrode column 6 and the negative electrode column 7. The charged dust changes the direction of the airflow under the action of the flow column 9, so that the dust has differences in speed and direction, thereby achieving effective coagulation and forming larger particle clusters, thereby separating the respirable dust from the air and entering the bag filter structure; when the positive electrode column 6 and the negative electrode column 7 are working, some dust will adhere to the outer wall surface, affecting the subsequent electro-coagulation effect, and the cleaning brush 8 is driven by the cleaning drive assembly to move and clean the surface.

[0030] The driving cleaning assembly is mainly composed of a driving box 10 , a mounting cavity 11 , a motor box 12 , a driving motor 13 , a spiral screw 14 and a moving block 15 .

[0031] The drive box 10 is mounted on the inner wall of the horizontal pipe 1, the installation cavity 11 is opened inside the drive box 10, the motor box 12 is mounted behind the drive box 10, the drive motor 13 is mounted inside the motor box 12, both ends of the screw 14 are embedded in the installation cavity 11, one end of the screw 14 is connected to the output end of the drive motor 13, the moving block 15 is installed on the screw 14 through threaded fitting, and the moving block 15 is connected to the cleaning brush 8. Further, the screw 14 is embedded on the inner wall of the installation cavity 11 through the bearing 16.

[0032] When the driving cleaning component is working, the driving motor 13 installed in the motor box 12 starts to rotate, and the driving motor 13 drives the spiral screw 14 connected to its output end and installed in the internal mounting cavity 11 of the driving box 10 through the rotating bearing 16 to rotate. The rotation of the spiral screw 14 drives the moving block 15 installed in conjunction with its thread to move, thereby driving the cleaning brush 8 to reciprocate on the surface of the positive electrode column 6 and the negative electrode column 7 to clean the surface.

[0033] The detection and separation circulation structure is mainly composed of a detection controller 17, a dust detection probe 18, an exhaust switch valve 19, a mounting seat 20, a circulation air pump 21, an air intake pipe 22 and a circulation air delivery pipe 23.

[0034] The detection controller 17 is installed at the left end of the outer upper wall of the detection pipeline 2, and the dust detection probe 18 is embedded in the inner wall of the detection pipeline 2 and electrically connected to the detection controller 17. The exhaust switch valve 19 is embedded in the right end of the detection pipeline 2. The mounting seat 20 is installed on the right side of the detection controller 17. The circulating air pump 21 is installed above the mounting seat 20. One end of the suction pipe 22 is installed on the air inlet of the circulating air pump 21 and the other end penetrates and extends into the interior of the detection pipeline 2. One end of the circulating air delivery pipe 23 is installed on the circulating air pump 21 and the other end is connected to the air intake hopper 4. The suction hopper 24 is installed on the suction pipe 22. The supporting frame 25 is installed on the circulating air delivery pipe 23.

[0035] When using the detection separation circulation structure, the separated air flow is transported into the detection pipeline 2. As the air flow flows, the dust detection probe 18 detects the dust content in the air. When the dust content is higher than the equipment value, the exhaust switch valve 19 is closed, and the circulating air pump 21 installed on the mounting seat 20 is started to suck out the air through the suction pipe 22 and circulate it back to the air intake hopper 4 through the circulating air pipe 23 for electro-coagulation separation treatment again. When the data is detected to be lower than the set value, the exhaust switch valve 19 is opened to discharge into the open space.

[0036] The bag filter structure is mainly composed of a dust collecting box 26 , a dust collecting chamber 27 , a fixed outer frame 28 , a dust collecting bag 29 and two pairs of fixed pressing plates 30 .

[0037] The dust box 26 is installed below the dust leakage port 3 opened on the lower wall surface at the connection between the horizontal pipe 1 and the detection pipe 2, the dust collecting chamber 27 is opened inside the dust box 26, the fixed outer frame 28 is installed at the upper position of the inner wall surface of the dust collecting chamber 27, and the dust collecting bag 29 is installed on the fixed outer frame 28 through two pairs of fixed pressing plates 30. Furthermore, the fixed pressing plate 30 is installed on the fixed outer frame 28 through fixing bolts 31. A protective grille 32 is installed on the lower wall surface of the dust box 26.

[0038] When using the bag filter structure, the respirable dust condenses into larger particle clusters under the action of the charge and the flow column 9. Due to gravity, the dust particles enter the dust collecting chamber 27 opened inside the dust collecting box 26 when passing through the dust leakage port 3. The dust collecting bag 29 installed in the dust collecting chamber 27 through the fixed outer frame 28 and the fixed pressure plate 30 is used to filter and collect the dust particles, thereby ensuring the separation effect of the respirable dust.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A respirable dust separation device based on electrocoagulation, comprising: A horizontal pipe (1) and a detection pipe (2), characterized in that the detection pipe (2) is installed at the right end of the horizontal pipe (1), and the right end of the detection pipe (2) is gradually inclined upward relative to the left end, an electric coagulation and diversion separation structure is installed in the horizontal pipe (1), a detection and separation circulation structure is installed on the detection pipe (2), a dust leakage port (3) is provided on the lower wall surface at the connection between the horizontal pipe (1) and the detection pipe (2), and a bag filter structure is installed below the dust leakage port (3); The electrocoagulation diversion separation structure comprises: an air inlet hopper (4), a separation baffle (5), a positive electrode column (6), a negative electrode column (7), a pair of cleaning brushes (8), a pair of cleaning drive components and a plurality of flow-around columns (9); An air inlet hopper (4) is mounted at the left end of the horizontal pipe (1); a partition baffle (5) is mounted horizontally at the middle of the left end of the inner wall of the horizontal pipe (1); a positive electrode column (6) is mounted above the partition baffle (5); a negative electrode column (7) is mounted below the partition baffle (5); a pair of driving cleaning components are mounted on the upper and lower inner walls of the horizontal pipe (1); a pair of cleaning brushes (8) are respectively mounted on the positive electrode column (6) and the negative electrode column (7); and a plurality of flow columns (9) are mounted on the right side of the partition baffle (5).

2. The respirable dust separation device based on electrocoagulation according to claim 1, characterized in that: A pair of driving cleaning components each comprises: a driving box (10), a mounting cavity (11), a motor box (12), a driving motor (13), a spiral screw (14) and a moving block (15); The drive box (10) is mounted on the inner wall surface of the horizontal pipe (1), the installation cavity (11) is opened inside the drive box (10), the motor box (12) is mounted behind the drive box (10), the drive motor (13) is mounted inside the motor box (12), both ends of the screw screw (14) are embedded in the installation cavity (11), one end of the screw screw (14) is connected to the output end of the drive motor (13), the moving block (15) is mounted on the screw screw (14) through threaded engagement, and the moving block (15) is connected to the cleaning brush (8).

3. The respirable dust separation device based on electrocoagulation according to claim 2, characterized in that: The spiral screw (14) is embedded on the inner wall surface of the installation cavity (11) through a bearing (16).

4. The respirable dust separation device based on electrocoagulation according to claim 1, characterized in that: The detection separation circulation structure comprises: a detection controller (17), a dust detection probe (18), an exhaust switch valve (19), a mounting seat (20), a circulation air pump (21), an air intake pipe (22) and a circulation air delivery pipe (23); The detection controller (17) is mounted on the left end of the outer upper wall of the detection pipeline (2); the dust detection probe (18) is embedded in the inner wall of the detection pipeline (2) and is electrically connected to the detection controller (17); the exhaust switch valve (19) is embedded in the right end of the detection pipeline (2); the mounting seat (20) is mounted on the right side of the detection controller (17); the circulating air pump (21) is mounted above the mounting seat (20); one end of the suction pipe (22) is mounted on the air inlet of the circulating air pump (21) and the other end penetrates and extends into the interior of the detection pipeline (2); one end of the circulating air delivery pipe (23) is mounted on the circulating air pump (21) and the other end is connected to the air inlet hopper (4).

5. The respirable dust separation device based on electrocoagulation according to claim 4, characterized in that: A suction hopper (24) is installed on the suction pipe (22).

6. The respirable dust separation device based on electrocoagulation according to claim 4, characterized in that: A support frame (25) is installed on the circulating gas delivery pipe (23).

7. The respirable dust separation device based on electrocoagulation according to claim 1, characterized in that: The bag filter structure comprises: a dust collecting box (26), a dust collecting chamber (27), a fixed outer frame (28), a dust collecting bag (29) and two pairs of fixed pressing plates (30); The dust collecting box (26) is installed below the dust leakage port (3) provided on the lower wall surface at the connection between the horizontal pipe (1) and the detection pipe (2); the dust collecting chamber (27) is provided inside the dust collecting box (26); the fixed outer frame (28) is installed at the upper position of the inner wall surface of the dust collecting chamber (27); and the dust collecting bag (29) is installed on the fixed outer frame (28) via two pairs of fixed pressing plates (30).

8. The respirable dust separation device based on electrocoagulation according to claim 7, characterized in that: The fixed pressing plate (30) is mounted on the fixed outer frame (28) via fixing bolts (31).

9. The respirable dust separation device based on electrocoagulation according to claim 7, characterized in that: A protective grille (32) is installed on the lower wall surface of the dust collecting box (26).

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