A gas-solid two-phase separation and filtration device

Abstract

The present invention discloses a gas-solid two-phase separation and filtration device, which belongs to the technical field of gas-solid two-phase separation and filtration. It mainly addresses the problem that the use load of the filter membrane in the existing filtration device is too large and impurities are difficult to clean. It comprises a primary gas-solid separation tank, and the top of the outer wall of one side of the primary gas-solid separation tank is fixedly connected to an impurity gas inlet pipe through a flange. The untreated exhaust gas of the present invention can filter out large-sized solid impurities in time under the action of the primary filter assembly inside the primary gas-solid separation tank, and can filter out the remaining small-sized solid impurities under the action of the secondary filter assembly inside the secondary gas-solid separation tank. The multi-layer filtration method can reduce the use load of the filter membrane. On this basis, through the action of the dust cleaning mechanism, a pulse airflow can be formed to impact the filter membrane, and the impurities attached to the surface of the filter membrane can be automatically washed away every once in a while, thereby effectively improving the service life of the filter membrane.

Description

Technical Field

[0001] The invention relates to the technical field of gas-solid two-phase separation and filtration, in particular to a gas-solid two-phase separation and filtration device. Background Art

[0002] Gas-solid two-phase separation and filtration is a physical process primarily used to capture or separate solid particles dispersed in a gas. In this process, dust-laden gas passes through a permeable filter material, trapping solid particles on the surface or within the material, thereby achieving separation. With the widespread and large-scale application of membranes, membrane application technology is also experiencing a diversified development trend. The development of membrane-based water resource technology has provided new development directions for gas-solid two-phase separation and filtration technology.

[0003] In the industrial production process, some gases may contain a small amount of mud, sand, and smoke. If the gas containing impurities is re-introduced into the equipment, it will contaminate the equipment, thereby affecting the stability of the equipment's operation. Therefore, in the process of treating the exhaust gas, it is necessary to promptly remove the impurities in the gas. The traditional treatment method is simply to filter through the filter membrane to prevent solid particles from passing through the filter membrane, thereby achieving the filtering effect. However, this treatment method places too much load on the filter membrane. No matter how large the size of the impurities, they need to be filtered through the filter membrane, resulting in the filter membrane absorbing a large amount of impurities in a short period of time. In addition, since the filter membrane is installed inside the equipment, it is very difficult to handle, resulting in a short service life of the filter membrane. Summary of the Invention

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a gas-solid two-phase separation and filtering device. By setting up two sets of gas-solid two-phase separation devices, the untreated exhaust gas can timely filter out large-sized solid impurities under the action of the primary filter component inside the primary gas-solid separation tank, and can filter out the remaining small-sized solid impurities under the action of the secondary filter component inside the secondary gas-solid separation tank. The multi-layer filtration method can reduce the use load of the filter membrane. On this basis, through the action of the cleaning mechanism, a pulse airflow can be formed to impact the filter membrane, and the impurities attached to the surface of the filter membrane can be washed away by itself every once in a while, thereby effectively improving the service life of the filter membrane, so as to solve the problem that the use load of the filter membrane proposed in the above background technology is too large. No matter how large the impurities are, they need to be filtered through the filter membrane, which causes the filter membrane to adsorb a large amount of impurities in a short period of time. Moreover, since the filter membrane is installed inside the equipment, it is very difficult to handle, resulting in a short service life of the filter membrane.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A gas-solid two-phase separation and filtration device comprises a primary gas-solid separation tank, the top of the outer wall on one side of the primary gas-solid separation tank is fixedly connected to an impurity gas inlet pipe via a flange, and the outer wall on the other side of the primary gas-solid separation tank is fixedly connected to a ventilation pipe fitting via a flange, the outer wall of one end of the ventilation pipe fitting is fixedly connected to a secondary gas-solid separation tank via a flange, and a dust cleaning mechanism is provided inside the primary gas-solid separation tank, the ventilation pipe fitting and the secondary gas-solid separation tank, wherein a primary filter assembly is provided inside the primary gas-solid separation tank, and a secondary filter assembly is provided inside the secondary gas-solid separation tank;

[0007] The cleaning mechanism includes an air connecting pipe, a pulse solenoid valve, a pulse air inlet pipe, a ventilation control component, a pulse component, a long flat pipe and an excitation component, wherein the air connecting pipe is arranged on one side of the secondary gas-solid separation tank, the pulse solenoid valve is fixedly connected to the outer wall of one end of the air connecting pipe, the pulse air inlet pipe is fixedly connected to the air outlet of the pulse solenoid valve, the ventilation control component is fixedly connected to the outer wall of one end of the pulse air inlet pipe, the pulse component is installed on the top of the ventilation control component, the long flat pipe is installed on the outer wall of the other side of the ventilation control component, and the excitation component is fixedly connected to the outer wall of one end of the long flat pipe, wherein the ventilation control component is located inside the secondary gas-solid separation tank, the long flat pipe is arranged through the inside of the ventilation pipe, and the excitation component is located inside the primary gas-solid separation tank.

[0008] Two sets of gas-solid two-phase separation devices are set up. The untreated exhaust gas can filter out large-sized solid impurities in time under the action of the primary filter component inside the primary gas-solid separation tank, and the remaining small-sized solid impurities can be filtered out under the action of the secondary filter component inside the secondary gas-solid separation tank. The multi-layer filtration method can reduce the use load of the filter membrane. On this basis, through the action of the cleaning mechanism, a pulse airflow can be formed to impact the filter membrane, and the impurities attached to the surface of the filter membrane can be washed away by itself every once in a while, thereby effectively improving the service life of the filter membrane.

[0009] As a further solution of the present invention, the ventilation pipe includes a butt joint fixedly connected between the primary gas-solid separation tank and the secondary gas-solid separation tank through a flange, and an upper baffle and a lower baffle respectively installed on the top inner wall and the bottom inner wall of the butt joint.

[0010] As a further solution of the present invention, the ventilation control assembly includes a top tube, a bottom tube, a lifting column, a plug, a first conductive sheet, a main board and a second conductive sheet, wherein the top tube is located inside the secondary gas-solid separation tank, and the top tube is fixedly connected to the outer wall of one end of the pulse intake pipe, the bottom tube is arranged at the bottom of the top tube, the lifting column is slidably connected to the top inner wall of the top tube, the plug is fixedly connected to the bottom outer wall of the lifting column, and the plug is slidably connected to the inner wall of the top tube, the first conductive sheet is fixedly connected to the bottom outer wall of the plug, the main board is fixedly connected to the bottom inner wall of the bottom tube by screws, and the second conductive sheet is installed on the top outer wall of the main board, wherein the first conductive sheet and the second conductive sheet are both connected to the main board through signal lines, and the first conductive sheet is located directly above the second conductive sheet.

[0011] As a further solution of the present invention, the pulse assembly includes a pulse generating tube fixedly connected to the outer wall of one side of the top tube, T-shaped connecting pipes welded to the top of the pulse generating tube and distributed at equal distances, and array-distributed nozzles installed on both sides of the outer wall of the bottom of the T-shaped connecting pipe.

[0012] As a further solution of the present invention, the excitation assembly includes an excitation chamber, a sleeve, an excitation column, an air nozzle, a rubber buffer ring, a front retaining ring and a rear retaining ring, wherein the excitation chamber is fixedly connected to the outer wall of one end of the long flat tube, the sleeve is arranged around the inner wall of the excitation chamber, the excitation column is slidably connected to the inner wall of the sleeve, the air nozzle is opened through the inner wall of the excitation column, the rubber buffer ring is bonded to the outer wall of one end of the excitation column, the front retaining ring and the rear retaining ring are respectively arranged on the outer walls of both ends of the excitation column, wherein the front retaining ring is located outside the excitation chamber, and the rear retaining ring is located inside the excitation chamber.

[0013] In the cleaning mechanism, when a large amount of impurities adhere to the surface of the rectangular filter element, the weight of the rectangular filter element increases, which causes the spring to compress and the filter element connecting plate to move downward, thereby controlling the lifting column to move downward. On the one hand, the plug will be away from the pulse air inlet pipe, and on the other hand, the first conductive sheet and the second conductive sheet will contact to form a path to start the pulse solenoid valve. Under the action of the pulse solenoid valve, the pulse gas can be blown to the rectangular filter element through the nozzle on one side to complete the cleaning of small-sized impurities on the surface of the rectangular filter element. On the other side, the pulse gas will enter the vibration chamber along the long flat pipe, thereby controlling the vibration column to hit the ash discharge pipe to complete the cleaning of large-sized impurities on the inner wall of the ash discharge pipe. The structural design is reasonable, with good cleaning effect, reducing the failure rate of the filter device and extending the maintenance cycle of the equipment.

[0014] As a further solution of the present invention, the primary filter assembly includes a lower air blocking pipe, an upper air blocking pipe, an ash discharge pipe, an air inlet and a central lower air pipe, wherein the lower air blocking pipe and the upper air blocking pipe are both installed inside the primary gas-solid separation tank, and the lower air blocking pipe is located at the bottom of the upper air blocking pipe, the ash discharge pipes distributed at equal distances are welded through the inner walls of the lower air blocking pipe and the upper air blocking pipe, the air inlet is opened on the outer wall of the ash discharge pipe, and the air inlet is located between the lower air blocking pipe and the upper air blocking pipe, and the central lower air pipe is welded through the inner walls of the lower air blocking pipe and the upper air blocking pipe.

[0015] As a further solution of the present invention, the secondary filter assembly includes a side support plate, a spring, a gravity bent plate, a guide rod, a filter element connecting plate and a rectangular filter element, wherein the side support plate includes two and is respectively welded to the inner walls on both sides of the secondary gas-solid separation tank, the spring is fixedly connected to the top outer wall of the side support plate, the gravity bent plate is fixedly connected to the top of the spring, the guide rod is welded to the top inner wall of the gravity bent plate, and the guide rod is slidably connected to the inner wall of the side support plate, the filter element connecting plate is installed between the two gravity bent plates, and the rectangular filter elements distributed at equal distances are all installed on the bottom outer wall of the filter element connecting plate, wherein the lifting column is fixedly connected to the bottom outer wall of the filter element connecting plate, and the nozzle is arranged inside the rectangular filter element.

[0016] As a further solution of the present invention, the interior of the primary gas-solid separation tank is divided into a primary separation bin and a first ash unloading hopper, wherein the primary separation bin is located at the top of the first ash unloading hopper, the top of the ash discharge pipe is arranged inside the primary separation bin, the bottom of the ash discharge pipe is arranged inside the first ash unloading hopper, and both ends of the central downpipe are arranged inside the primary separation bin, wherein the long flat pipe is fixedly connected to the inner wall of the air outlet of the primary separation bin by a cross connecting frame.

[0017] In the primary filter assembly and the secondary filter assembly, the exhaust gas enters the primary gas-solid separation tank through the impurity gas inlet pipe and can enter the ash discharge pipe along the air inlet. The heavy solids will automatically fall into the first ash discharge hopper under the influence of gravity, and the remaining exhaust gas can pass through the ash discharge pipe and enter the central lower air pipe, realizing the preliminary filtration of the exhaust gas. On this basis, the remaining exhaust gas enters the secondary gas-solid separation tank, and the remaining small-sized solid impurities can be filtered out under the action of multiple rectangular filter elements, while reducing the use load of the rectangular filter element, it can also ensure the adequacy of the exhaust gas filtration.

[0018] As a further solution of the present invention, the interior of the secondary gas-solid separation tank is divided into a secondary separation chamber, a clean gas chamber and a second ash unloading hopper, wherein the secondary separation chamber is located between the clean gas chamber and the second ash unloading hopper, and the secondary filter assembly is arranged inside the secondary separation chamber, and the pulse air intake pipe is fixedly connected to the inner wall of one side of the secondary separation chamber.

[0019] As a further solution of the present invention, a first auxiliary pulse tube is welded on the outer wall of the pulse generating tube, and a first solenoid valve is installed on the outer wall of the first auxiliary pulse tube, a second auxiliary pulse tube is welded on the outer wall of the long flat tube, and a second solenoid valve is installed on the outer wall of the second auxiliary pulse tube, and a one-way valve is installed on the outer wall of the long flat tube to prevent air flow from the primary gas-solid separation tank to the ventilation pipe.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The gas-solid two-phase separation filter device of the present invention is equipped with two sets of gas-solid two-phase separation devices. The untreated exhaust gas can timely filter out large-sized solid impurities under the action of the primary filter component inside the primary gas-solid separation tank, and can filter out the remaining small-sized solid impurities under the action of the secondary filter component inside the secondary gas-solid separation tank. The multi-layer filtration method can reduce the use load of the filter membrane. On this basis, through the action of the cleaning mechanism, a pulse airflow can be formed to impact the filter membrane, and the impurities attached to the surface of the filter membrane can be washed away by itself every once in a while, thereby effectively improving the service life of the filter membrane.

[0022] 2. In the gas-solid two-phase separation filtration device of the present invention, in the primary filtration component and the secondary filtration component, the exhaust gas enters the primary gas-solid separation tank through the impurity gas inlet pipe and can enter the ash discharge pipe along the air inlet. The heavy solids will automatically fall into the first ash discharge hopper under the influence of gravity, and the remaining exhaust gas can pass through the ash discharge pipe and enter the central lower air pipe, realizing the preliminary filtration of the exhaust gas. On this basis, the remaining exhaust gas enters the secondary gas-solid separation tank, and the remaining small-sized solid impurities can be filtered out under the action of multiple rectangular filter elements. While reducing the use load of the rectangular filter element, it can also ensure the adequacy of the exhaust gas filtration.

[0023] 3. In the gas-solid two-phase separation filter device of the present invention, in the dust cleaning mechanism, when a large amount of impurities adhere to the surface of the rectangular filter element, the weight of the rectangular filter element increases, causing the spring to compress, and the filter element connecting plate to move downward, thereby controlling the lifting column to move downward. On the one hand, the plug will be away from the pulse air inlet pipe, and on the other hand, the first conductive sheet and the second conductive sheet will contact to form a passage to start the pulse solenoid valve. Under the action of the pulse solenoid valve, the pulse gas can be blown to the rectangular filter element through the nozzle on one side to complete the cleaning of small-sized impurities on the surface of the rectangular filter element, and on the other side, the pulse gas will enter the vibration chamber along the long flat pipe, thereby controlling the vibration column to hit the ash discharge pipe to complete the cleaning of large-sized impurities on the inner wall of the ash discharge pipe. The structural design is reasonable, has a good dust cleaning effect, reduces the failure rate of the filter device, and extends the maintenance cycle of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1It is a schematic diagram of the overall three-dimensional structure of a gas-solid two-phase separation and filtration device;

[0025] Figure 2 This is a sectional view of the overall three-dimensional structure of a gas-solid two-phase separation and filtration device;

[0026] Figure 3 This is a schematic diagram of a dust cleaning mechanism for a gas-solid two-phase separation and filtration device;

[0027] Figure 4 for Figure 3 Schematic diagram of the local structure;

[0028] Figure 5 for Figure 4 A magnified schematic diagram of the local structure at point C;

[0029] Figure 6 This is a schematic diagram of an excitation component of a gas-solid two-phase separation and filtration device;

[0030] Figure 7 for Figure 6 A magnified schematic diagram of the local structure at point B;

[0031] Figure 8 This is a schematic diagram of the internal structure of a primary gas-solid separation tank of a gas-solid two-phase separation and filtration device;

[0032] Figure 9 Schematic diagram of the internal structure of the secondary gas-solid separation tank of a gas-solid two-phase separation filtration device Figure 1 ;

[0033] Figure 10 Schematic diagram of the internal structure of the secondary gas-solid separation tank of a gas-solid two-phase separation filtration device Figure 2 ;

[0034] Figure 11 for Figure 9 A magnified schematic diagram of the local structure at D;

[0035] Figure 12 for Figure 2 A magnified schematic diagram of the local structure at point A.

[0036] In the figure: 1. Primary gas-solid separation tank; 2. Impurity gas inlet pipe; 3. Ventilation pipe; 31. Butt joint pipe; 32. Upper baffle; 33. Lower baffle; 4. Secondary gas-solid separation tank; 5. Ash cleaning mechanism; 51. Gas connecting pipe; 52. Pulse solenoid valve; 53. Pulse inlet pipe; 54. Ventilation control assembly; 541. Top tube; 542. Bottom tube; 543. Lifting column; 544. Plug; 545. First conductive sheet; 546. Main board; 547. Second conductive sheet; 55. Pulse assembly; 551. Pulse generating tube; 552. T-type connecting pipe; 553. Nozzle; 56. Long flat tube; 57. Vibration assembly; 571. Vibration chamber; 572. Sleeve; 573. Excitation column; 574, air nozzle; 575, rubber buffer ring; 576, front baffle ring; 577, rear baffle ring; 6, primary filter assembly; 61, lower air baffle pipe; 62, upper air baffle pipe; 63, ash discharge pipe; 64, air inlet; 65, center lower air pipe; 7, secondary filter assembly; 71, side support plate; 72, spring; 73, gravity bent plate; 74, guide rod; 75, filter element connecting plate; 76, rectangular filter element; 8, primary separation chamber; 9, first ash hopper; 10, secondary separation chamber; 11, clean gas chamber; 12, second ash hopper; 13, first auxiliary pulse tube; 14, first solenoid valve; 15, second auxiliary pulse tube; 16, second solenoid valve; 17, one-way valve. DETAILED DESCRIPTION

[0037] See also Figure 1-Figure 2 In an embodiment of the present invention, a gas-solid two-phase separation and filtration device includes a primary gas-solid separation tank 1, the top of the outer wall on one side of the primary gas-solid separation tank 1 is fixedly connected to an impurity gas inlet pipe 2 through a flange, and the outer wall on the other side of the primary gas-solid separation tank 1 is fixedly connected to a ventilation pipe 3 through a flange, and the outer wall of one end of the ventilation pipe 3 is fixedly connected to a secondary gas-solid separation tank 4 through a flange, and a cleaning mechanism 5 is arranged throughout the interiors of the primary gas-solid separation tank 1, the ventilation pipe 3 and the secondary gas-solid separation tank 4, wherein a primary filter component 6 is arranged inside the primary gas-solid separation tank 1, and a secondary filter component 7 is arranged inside the secondary gas-solid separation tank 4.

[0038] In this embodiment, two sets of gas-solid two-phase separation devices are provided. The untreated exhaust gas can filter out large-sized solid impurities in time under the action of the primary filter component 6 inside the primary gas-solid separation tank 1, and can filter out the remaining small-sized solid impurities under the action of the secondary filter component 7 inside the secondary gas-solid separation tank 4. The multi-layer filtration method can reduce the use load of the filter membrane. On this basis, through the action of the cleaning mechanism 5, a pulse airflow can be formed to impact the filter membrane, and the impurities attached to the surface of the filter membrane can be washed away by itself every once in a while, thereby effectively improving the service life of the filter membrane.

[0039] See also Figure 3In the embodiment of the present invention, the cleaning mechanism 5 includes an air connecting pipe 51, a pulse solenoid valve 52, a pulse air inlet pipe 53, a ventilation control component 54, a pulse component 55, a long flat pipe 56 and an excitation component 57, wherein the air connecting pipe 51 is arranged on one side of the secondary gas-solid separation tank 4, the pulse solenoid valve 52 is fixedly connected to the outer wall of one end of the air connecting pipe 51, the pulse air inlet pipe 53 is fixedly connected to the air outlet of the pulse solenoid valve 52, the ventilation control component 54 is fixedly connected to the outer wall of one end of the pulse air inlet pipe 53, the pulse component 55 is installed on the top of the ventilation control component 54, the long flat pipe 56 is installed on the outer wall of the other side of the ventilation control component 54, and the excitation component 57 is fixedly connected to the outer wall of one end of the long flat pipe 56, wherein the ventilation control component 54 is located inside the secondary gas-solid separation tank 4, the long flat pipe 56 is arranged through the inside of the ventilation pipe 3, and the excitation component 57 is located inside the primary gas-solid separation tank 1.

[0040] In this embodiment, in the cleaning mechanism 5, when a large amount of impurities adhere to the surface of the rectangular filter element 76, the weight of the rectangular filter element 76 increases, causing the spring 72 to be compressed, and the filter element connecting plate 75 to move downward, thereby controlling the lifting column 543 to move downward. On the one hand, the plug 544 will move away from the pulse air inlet pipe 53, and on the other hand, the first conductive sheet 545 and the second conductive sheet 547 contact to form a passage to start the pulse solenoid valve 52. Under the action of the pulse solenoid valve 52, the pulse gas can be blown toward the rectangular filter element 76 through the nozzle 553 on the one hand, thereby completing the cleaning of small-sized impurities on the surface of the rectangular filter element 76, and on the other hand, the pulse gas will enter the vibration chamber 571 along the long flat tube 56, thereby controlling the vibration column 573 to hit the ash discharge pipe 63, thereby completing the cleaning of large-sized impurities on the inner wall of the ash discharge pipe 63. The structural design is reasonable, has a good cleaning effect, reduces the failure rate of the filtering device, and extends the maintenance cycle of the equipment.

[0041] See also Figure 8 In an embodiment of the present invention, the primary filter assembly 6 includes a lower air blocking pipe 61, an upper air blocking pipe 62, an ash discharge pipe 63, an air inlet 64 and a central lower air pipe 65, wherein the lower air blocking pipe 61 and the upper air blocking pipe 62 are both installed inside the primary gas-solid separation tank 1, and the lower air blocking pipe 61 is located at the bottom of the upper air blocking pipe 62, the ash discharge pipes 63 distributed at equal distances are welded through the inner walls of the lower air blocking pipe 61 and the upper air blocking pipe 62, the air inlet 64 is opened on the outer wall of the ash discharge pipe 63, and the air inlet 64 is located between the lower air blocking pipe 61 and the upper air blocking pipe 62, and the central lower air pipe 65 is welded through the inner walls of the lower air blocking pipe 61 and the upper air blocking pipe 62.

[0042] See also Figures 9-11In the embodiment of the present invention, the secondary filter assembly 7 includes side support plates 71, springs 72, gravity bent plates 73, guide rods 74, filter element connecting plates 75 and rectangular filter elements 76, wherein the side support plates 71 include two and are respectively welded to the inner walls on both sides of the secondary gas-solid separation tank 4, the springs 72 are fixedly connected to the top outer walls of the side support plates 71, the gravity bent plates 73 are fixedly connected to the top of the springs 72, the guide rods 74 are welded to the top inner walls of the gravity bent plates 73, and the guide rods 74 are slidably connected to the inner walls of the side support plates 71, the filter element connecting plate 75 is installed between the two gravity bent plates 73, and the rectangular filter elements 76 distributed at equal distances are all installed on the bottom outer wall of the filter element connecting plate 75, wherein the lifting column 543 is fixedly connected to the bottom outer wall of the filter element connecting plate 75, and the nozzle 553 is arranged inside the rectangular filter element 76.

[0043] In this embodiment, in the primary filter assembly 6 and the secondary filter assembly 7, the exhaust gas enters the primary gas-solid separation tank 1 through the impurity gas inlet pipe 2 and can enter the ash discharge pipe 63 along the air inlet 64. The heavy solids will automatically fall into the first ash discharge hopper 9 under the influence of gravity, and the remaining exhaust gas can pass through the ash discharge pipe 63 and enter the central lower air pipe 65, thereby realizing the preliminary filtration of the exhaust gas. On this basis, the remaining exhaust gas enters the secondary gas-solid separation tank 4, and the remaining small-sized solid impurities can be filtered out under the action of multiple rectangular filter elements 76. While reducing the use load of the rectangular filter element 76, it can also ensure the adequacy of the exhaust gas filtration.

[0044] See also Figure 12 In an embodiment of the present invention, the ventilation pipe 3 includes a butt joint 31 fixedly connected between the primary gas-solid separation tank 1 and the secondary gas-solid separation tank 4 through a flange, and an upper baffle 32 and a lower baffle 33 respectively installed on the top inner wall and the bottom inner wall of the butt joint 31.

[0045] See also Figure 5In the embodiment of the present invention, the ventilation control assembly 54 includes a top tube 541, a bottom tube 542, a lifting column 543, a plug 544, a first conductive sheet 545, a main board 546 and a second conductive sheet 547, wherein the top tube 541 is located inside the secondary gas-solid separation tank 4, and the top tube 541 is fixedly connected to the outer wall of one end of the pulse intake pipe 53, the bottom tube 542 is arranged at the bottom of the top tube 541, the lifting column 543 is slidably connected to the top inner wall of the top tube 541, and the plug 544 is fixedly connected On the bottom outer wall of the lifting column 543, and the plug 544 is slidably connected to the inner wall of the top tube 541, the first conductive sheet 545 is fixedly connected to the bottom outer wall of the plug 544, the main board 546 is fixedly connected to the bottom inner wall of the bottom tube 542 by screws, and the second conductive sheet 547 is installed on the top outer wall of the main board 546, wherein the first conductive sheet 545 and the second conductive sheet 547 are both connected to the main board 546 through signal lines, and the first conductive sheet 545 is located directly above the second conductive sheet 547.

[0046] See also Figure 4 In an embodiment of the present invention, the pulse assembly 55 includes a pulse generating tube 551 fixedly connected to the outer wall of one side of the top tube 541, T-shaped connecting tubes 552 welded to the top of the pulse generating tube 551 and distributed at equal distances, and array-distributed nozzles 553 installed on both sides of the outer wall of the bottom of the T-shaped connecting tube 552.

[0047] See also Figure 6-Figure 7 In an embodiment of the present invention, the excitation assembly 57 includes an excitation chamber 571, a sleeve 572, an excitation column 573, an air nozzle 574, a rubber buffer ring 575, a front retaining ring 576 and a rear retaining ring 577, wherein the excitation chamber 571 is fixedly connected to the outer wall of one end of the long flat tube 56, the sleeve 572 is arranged around the inner wall of the excitation chamber 571, the excitation column 573 is slidably connected to the inner wall of the sleeve 572, the air nozzle 574 is opened through the inner wall of the excitation column 573, the rubber buffer ring 575 is bonded to the outer wall of one end of the excitation column 573, the front retaining ring 576 and the rear retaining ring 577 are respectively arranged on the outer walls of both ends of the excitation column 573, wherein the front retaining ring 576 is located outside the excitation chamber 571, and the rear retaining ring 577 is located inside the excitation chamber 571.

[0048] See also Figure 2 In an embodiment of the present invention, the interior of the primary gas-solid separation tank 1 is divided into a primary separation bin 8 and a first ash unloading hopper 9, wherein the primary separation bin 8 is located at the top of the first ash unloading hopper 9, the top of the ash discharge pipe 63 is arranged inside the primary separation bin 8, and the bottom of the ash discharge pipe 63 is arranged inside the first ash unloading hopper 9. Both ends of the central downpipe 65 are arranged inside the primary separation bin 8, wherein the long flat tube 56 is fixedly connected to the inner wall of the air outlet of the primary separation bin 8 through a cross connecting frame.

[0049] See also Figure 2 In an embodiment of the present invention, the interior of the secondary gas-solid separation tank 4 is divided into a secondary separation bin 10, a clean gas chamber 11 and a second ash unloading hopper 12, wherein the secondary separation bin 10 is located between the clean gas chamber 11 and the second ash unloading hopper 12, and the secondary filter assembly 7 is arranged inside the secondary separation bin 10, and the pulse air intake pipe 53 is fixedly connected to the inner wall of one side of the secondary separation bin 10.

[0050] See also Figure 4 、 Figure 8 In the embodiment of the present invention, a first auxiliary pulse tube 13 is welded on the outer wall of the pulse generating tube 551, and a first solenoid valve 14 is installed on the outer wall of the first auxiliary pulse tube 13, a second auxiliary pulse tube 15 is welded on the outer wall of the long flat tube 56, and a second solenoid valve 16 is installed on the outer wall of the second auxiliary pulse tube 15, and a one-way valve 17 is installed on the outer wall of the long flat tube 56 to prohibit airflow from the primary gas-solid separation tank 1 to the ventilation pipe 3.

[0051] When it is necessary to enhance the cleaning effect of impurities on the surface of the rectangular filter element 76, the first solenoid valve 14 can be opened to allow additional pulse gas to enter the pulse generating tube 551 through the first auxiliary pulse tube 13, thereby enhancing the impact cleaning effect of the nozzle 553 on the rectangular filter element 76;

[0052] When it is necessary to strengthen the cleaning of large-sized impurities on the inner wall of the ash discharge pipe 63, open the second solenoid valve 16 to allow additional pulse gas to enter the long flat tube 56 through the second auxiliary pulse tube 15, and then flow into the vibration chamber 571, thereby increasing the force of the vibration column 573 hitting the ash discharge pipe 63 and improving the cleaning effect.

[0053] The working principle of the present invention is as follows: untreated exhaust gas enters the primary gas-solid separation tank 1 through the impurity gas inlet pipe 2, and the exhaust gas will enter the ash discharge pipe 63 along the air inlet 64. Some heavy solids will automatically fall into the first ash discharge hopper 9 under the influence of gravity, and the remaining exhaust gas containing small-sized impurities can pass through the ash discharge pipe 63 and enter the central lower air pipe 65. Then the exhaust gas will pass through the butt-joint pipe 31. The upper baffle 32 and the lower baffle 33 inside the butt-joint pipe 31 can slow down the speed at which the exhaust gas passes through, and can alleviate the influence of the strong airflow on the rectangular filter element 76. Afterwards, the remaining exhaust gas enters the secondary gas-solid separation tank 4, and a plurality of rectangular filter elements 76 are used to filter out the remaining small-sized solid impurities. The small-sized impurities will fall into the second ash discharge hopper 12, and the purified gas is discharged through the clean gas chamber 11.

[0054] After a period of time, a large amount of impurities will adhere to the surface of the rectangular filter element 76. In order not to affect the filtering effect of the rectangular filter element 76, the weight of the rectangular filter element 76 becomes heavier, which will cause the spring 72 to compress and the filter element connecting plate 75 to move downward, thereby controlling the lifting column 543 to move downward. On the one hand, the plug 544 will move away from the pulse air inlet pipe 53. On the other hand, the first conductive sheet 545 and the second conductive sheet 547 contact to form a passage to start the pulse solenoid valve 52. Under the action of the pulse solenoid valve 52, the pulse gas can be blown toward the rectangular filter element 76 through the nozzle 553 on the one hand, thereby completing the cleaning of small-sized impurities on the surface of the rectangular filter element 76. On the other hand, the pulse gas will enter the excitation chamber 571 along the long flat tube 56, thereby controlling the excitation column 573 to hit the ash discharge pipe 63, thereby completing the cleaning of large-sized impurities on the inner wall of the ash discharge pipe 63.

[0055] The above are only preferred specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A gas-solid two-phase separation and filtration device, comprising a primary gas-solid separation tank (1), characterized in that: The top of the outer wall on one side of the primary gas-solid separation tank (1) is fixedly connected to the impurity gas inlet pipe (2) via a flange, and the outer wall on the other side of the primary gas-solid separation tank (1) is fixedly connected to the ventilation pipe (3) via a flange, and the outer wall of one end of the ventilation pipe (3) is fixedly connected to the secondary gas-solid separation tank (4) via a flange, and a dust cleaning mechanism (5) is provided inside the primary gas-solid separation tank (1), the ventilation pipe (3) and the secondary gas-solid separation tank (4), wherein a primary filter assembly (6) is provided inside the primary gas-solid separation tank (1), and a secondary filter assembly (7) is provided inside the secondary gas-solid separation tank (4); The dust cleaning mechanism (5) comprises an air connection pipe (51), a pulse electromagnetic valve (52), a pulse air inlet pipe (53), a ventilation control component (54), a pulse component (55), a long flat pipe (56) and an excitation component (57), wherein the air connection pipe (51) is arranged on one side of the secondary gas-solid separation tank (4), the pulse electromagnetic valve (52) is fixedly connected to the outer wall of one end of the air connection pipe (51), the pulse air inlet pipe (53) is fixedly connected to the air outlet of the pulse electromagnetic valve (52), and the ventilation control component (54) is fixedly connected to the outer wall of the secondary gas-solid separation tank (4). The pulse assembly (55) is connected to the outer wall of one end of the pulse inlet pipe (53), the pulse assembly (55) is installed on the top of the ventilation control assembly (54), the long flat pipe (56) is installed on the outer wall of the other side of the ventilation control assembly (54), and the excitation assembly (57) is fixedly connected to the outer wall of one end of the long flat pipe (56), wherein the ventilation control assembly (54) is located inside the secondary gas-solid separation tank (4), the long flat pipe (56) is arranged to penetrate inside the ventilation pipe (3), and the excitation assembly (57) is located inside the primary gas-solid separation tank (1); The ventilation control assembly (54) includes a top cylinder (541), a bottom cylinder (542), a lifting column (543), a plug (544), a first conductive sheet (545), a main board (546) and a second conductive sheet (547), wherein the top cylinder (541) is located inside the secondary gas-solid separation tank (4), and the top cylinder (541) is fixedly connected to the outer wall of one end of the pulse intake pipe (53), the bottom cylinder (542) is arranged at the bottom of the top cylinder (541), the lifting column (543) is slidably connected to the top inner wall of the top cylinder (541), and the plug (544) is fixedly connected to the lifting column (543). The lowering column (543) is mounted on the bottom outer wall of the lowering column, and the plug (544) is slidably connected to the inner wall of the top tube (541). The first conductive sheet (545) is fixedly connected to the bottom outer wall of the plug (544). The main board (546) is fixedly connected to the bottom inner wall of the bottom tube (542) by screws. The second conductive sheet (547) is installed on the top outer wall of the main board (546). The first conductive sheet (545) and the second conductive sheet (547) are both connected to the main board (546) through a signal line, and the first conductive sheet (545) is located directly above the second conductive sheet (547).

2. A gas-solid two-phase separation filtration device according to claim 1, characterized in that: The vent pipe (3) comprises a butt joint (31) fixedly connected between the primary gas-solid separation tank (1) and the secondary gas-solid separation tank (4) via a flange, and an upper baffle (32) and a lower baffle (33) respectively mounted on the top inner wall and the bottom inner wall of the butt joint (31).

3. The gas-solid two-phase separation filtration device according to claim 1, characterized in that: The pulse assembly (55) includes a pulse generating tube (551) fixedly connected to the outer wall of one side of the top tube (541), T-shaped connecting tubes (552) welded to the top of the pulse generating tube (551) and distributed at equal distances, and array-distributed nozzles (553) installed on both sides of the outer wall of the bottom of the T-shaped connecting tube (552).

4. The gas-solid two-phase separation filtration device according to claim 1, characterized in that: The excitation assembly (57) includes an excitation chamber (571), a sleeve (572), an excitation column (573), an air nozzle (574), a rubber buffer ring (575), a front baffle ring (576) and a rear baffle ring (577), wherein the excitation chamber (571) is fixedly connected to the outer wall of one end of the long flat tube (56), the sleeve (572) is arranged around the inner wall of the excitation chamber (571), and the excitation column (573) is slidably connected to the sleeve ( 572), an air nozzle (574) is provided on the inner wall of the excitation column (573), a rubber buffer ring (575) is bonded to the outer wall of one end of the excitation column (573), a front baffle ring (576) and a rear baffle ring (577) are respectively provided on the outer walls of both ends of the excitation column (573), wherein the front baffle ring (576) is located outside the excitation chamber (571), and the rear baffle ring (577) is located inside the excitation chamber (571).

5. The gas-solid two-phase separation filtration device according to claim 1, characterized in that: The primary filter assembly (6) comprises a lower air blocking pipe (61), an upper air blocking pipe (62), an ash discharge pipe (63), an air inlet (64) and a central lower air pipe (65), wherein the lower air blocking pipe (61) and the upper air blocking pipe (62) are both installed inside the primary gas-solid separation tank (1), and the lower air blocking pipe (61) is located at the bottom of the upper air blocking pipe (62), the ash discharge pipes (63) distributed at equal distances are welded through the inner walls of the lower air blocking pipe (61) and the upper air blocking pipe (62), the air inlet (64) is opened on the outer wall of the ash discharge pipe (63), and the air inlet (64) is located between the lower air blocking pipe (61) and the upper air blocking pipe (62), and the central lower air pipe (65) is welded through the inner walls of the lower air blocking pipe (61) and the upper air blocking pipe (62).

6. The gas-solid two-phase separation filtration device according to claim 3, characterized in that: The secondary filter assembly (7) includes a side support plate (71), a spring (72), a gravity bent plate (73), a guide rod (74), a filter element connecting plate (75) and a rectangular filter element (76), wherein the side support plate (71) includes two and is respectively welded to the inner walls of both sides of the secondary gas-solid separation tank (4), the spring (72) is fixedly connected to the top outer wall of the side support plate (71), the gravity bent plate (73) is fixedly connected to the top of the spring (72), the guide rod (74) The filter element connecting plate (75) is welded to the top inner wall of the gravity bent plate (73), and the guide rod (74) is slidably connected to the inner wall of the side support plate (71). The filter element connecting plate (75) is installed between the two gravity bent plates (73). The rectangular filter elements (76) distributed at equal distances are all installed on the bottom outer wall of the filter element connecting plate (75). The lifting column (543) is fixedly connected to the bottom outer wall of the filter element connecting plate (75), and the nozzle (553) is arranged inside the rectangular filter element (76).

7. The gas-solid two-phase separation filtration device according to claim 5, characterized in that: The interior of the primary gas-solid separation tank (1) is divided into a primary separation bin (8) and a first ash discharge hopper (9), wherein the primary separation bin (8) is located at the top of the first ash discharge hopper (9), the top of the ash discharge pipe (63) is arranged inside the primary separation bin (8), the bottom of the ash discharge pipe (63) is arranged inside the first ash discharge hopper (9), and both ends of the central lower air pipe (65) are arranged inside the primary separation bin (8), wherein the long flat pipe (56) is fixedly connected to the inner wall of the air outlet of the primary separation bin (8) through a cross connecting frame.

8. The gas-solid two-phase separation filtration device according to claim 6, characterized in that: The interior of the secondary gas-solid separation tank (4) is divided into a secondary separation chamber (10), a clean gas chamber (11) and a second ash discharge hopper (12), wherein the secondary separation chamber (10) is located between the clean gas chamber (11) and the second ash discharge hopper (12), and the secondary filter assembly (7) is arranged inside the secondary separation chamber (10), and the pulse air inlet pipe (53) is fixedly connected to an inner wall of one side of the secondary separation chamber (10).

9. The gas-solid two-phase separation filtration device according to claim 3, characterized in that: A first auxiliary pulse tube (13) is welded to the outer wall of the pulse generating tube (551), and a first solenoid valve (14) is installed on the outer wall of the first auxiliary pulse tube (13); a second auxiliary pulse tube (15) is welded to the outer wall of the long flat tube (56), and a second solenoid valve (16) is installed on the outer wall of the second auxiliary pulse tube (15); and a one-way valve (17) is installed on the outer wall of the long flat tube (56) for preventing airflow from the primary gas-solid separation tank (1) to the ventilation pipe (3).

Images