Gas filtering device and recovery equipment

Abstract

The utility model provides a gas filtering device and recovery equipment, and relates to the technical field of gas recovery, the filtering device comprises a box body, one side of the interior of the box body is provided with a gas inlet cavity, the gas inlet cavity is provided with a gas inlet, the other side of the interior of the box body is provided with two filtering cavities, the filtering cavities are provided with gas outlets, and communication ports are arranged between the filtering cavities and the gas inlet cavity. The communicating port is provided with a valve; the two filter screens are detachably connected into the two filter cavities respectively, and the filter screens are arranged between the air inlet and the communicating port; the two valves are respectively used for controlling the air intake of the two filter cavities, so that the air intake adjustment is convenient, when the filter screen in one filter cavity breaks down, the filter screen in the other filter cavity can be conveniently closed through the corresponding valve, the filter screen in the other filter cavity can be continuously filtered, the maintenance and replacement operation without shutdown are ensured, and the working efficiency is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of gas recovery, and more specifically, relates to a gas filtering device and recovery equipment. Background Art

[0002] Converter steelmaking uses molten iron, scrap steel and ferroalloys as the main raw materials. The steelmaking process is completed in the converter. A large amount of gas will be generated during the steelmaking production process, mainly coal gas. Recovery equipment is needed to recover the generated coal gas to achieve recovery, filtration and heat absorption.

[0003] At present, when the existing steelmaking converter gas recovery equipment is in use, due to the long-term use of the filtering device, the filtering effect of the internal filter screen will be reduced, and it needs to be stopped for maintenance, which affects the recovery efficiency. Utility Model Content

[0004] The purpose of the utility model is to provide a gas filtering device and recovery equipment in view of the deficiencies in the existing technology, so as to solve the problem that when the filtering device of the existing steelmaking converter gas recovery equipment is used for a long time, the filtering effect of the filter screen will be reduced, and it is necessary to stop the work for maintenance, which affects the recovery efficiency.

[0005] In order to achieve the above object, the utility model provides a gas filtering device, which comprises:

[0006] A box body, wherein an air inlet cavity is provided on one side of the box body, the air inlet cavity is provided with an air inlet port, two filter cavities are provided on the other side of the box body, the filter cavities are provided with an air outlet, a communication port is provided between the filter cavity and the air inlet cavity, and the communication port is provided with a valve;

[0007] Two filter screens are respectively detachably connected in the two filter chambers, and the filter screens are arranged between the air inlet and the communication port.

[0008] Preferably, the gas filtering device further comprises:

[0009] A cleaning frame, wherein a scraping portion is provided on the peripheral side of the cleaning frame, and the scraping portion is in contact with the inner peripheral side of the air inlet cavity;

[0010] A lifting drive mechanism is arranged at the air inlet cavity position, the lifting drive mechanism is connected to the cleaning frame, and the lifting drive mechanism is used to drive the cleaning frame to move up and down.

[0011] Preferably, the lifting drive mechanism comprises:

[0012] A screw rod, the screw rod being rotatably connected to the inside of the air inlet cavity, the cleaning frame being provided with a threaded hole, the screw rod being threadedly connected to the threaded hole;

[0013] An adjusting motor, wherein the adjusting motor is arranged at the air inlet cavity position, and an output end of the adjusting motor is connected to the screw rod;

[0014] At least one guide rod is connected to the inside of the air inlet cavity, a guide hole is provided on the cleaning frame, and the guide rod is slidably connected to the guide hole.

[0015] Preferably, the cleaning frame comprises a frame and a beam body, two ends of the beam body are respectively connected to two inner sides of the frame, and the threaded hole and the guide hole are arranged on the beam body.

[0016] Preferably, the valve comprises:

[0017] A door body, the door body is flipped and arranged at the position of the communication port;

[0018] A rotating shaft is rotatably connected to the communication port, and the door body is connected to the rotating shaft.

[0019] A rotating motor is arranged at the filter chamber position and at one side of the door body, and an output end of the rotating motor is connected to the rotating shaft.

[0020] Preferably, one side of the filter cavity is provided with an opening, the filter screen can be inserted into the opening, the side wall of the box body is provided with mounting grooves on both sides of the opening, and the gas filtering device further comprises:

[0021] Two mounting plates, one side of each mounting plate is connected to one end of each filter screen, each mounting plate can be embedded in one of the openings, and can be embedded in the mounting grooves on both sides of one of the openings, both sides of the mounting plate are provided with first threaded holes, and both sides of the mounting grooves of the opening are provided with second threaded holes, and the first threaded holes and the corresponding second threaded holes can be connected by bolts;

[0022] Two handles are respectively connected to the other side of the two mounting plates.

[0023] Preferably, the gas filtering device further comprises:

[0024] An air inlet pipe, one end of which is connected to the air inlet, and the other end of which is provided with a first flange;

[0025] A hose, wherein both ends of the hose are provided with second flanges, and the first flange is connected to the second flange at one end by bolts;

[0026] A connecting pipe, wherein two ends of the connecting pipe are provided with third flanges, and the third flange at one end is connected to the second flange at the other end by bolts.

[0027] Preferably, a dust exhaust port is provided at the bottom of the filter cavity, and the gas filtering device further comprises two dust exhaust pipes, and one end of the two dust exhaust pipes is respectively connected to the two dust exhaust ports.

[0028] A gas recovery device, comprising:

[0029] Gas filtering device;

[0030] A heat exchanger is connected to the two air outlets.

[0031] Preferably, the heat exchanger comprises:

[0032] Heat exchange box;

[0033] A heat exchange tube, wherein the heat exchange tube is provided with a plurality of bending portions, the heat exchange tube is arranged in the heat exchange box, one end of the heat exchange tube passes through the top of the heat exchange box, the other end of the heat exchange tube passes through the bottom of the heat exchange box, and the other end of the heat exchange tube is connected to the two air outlets;

[0034] A water inlet pipe, the water inlet pipe passes through one end of the heat exchange box;

[0035] A water outlet pipe runs through the other end of the heat exchange box.

[0036] The utility model provides a gas filtering device and a recovery device, which have the following beneficial effects: an air intake chamber and two filter chambers are provided in the inner part of a box body of the filtering device, two filter screens are respectively detachably connected in the two filter chambers, the filter screens are used to filter the coal gas, a connecting port is provided between each filter chamber and the air intake chamber, the connecting port is provided with a valve, the two valves are respectively used to control the air intake of the two filter chambers, and the air intake adjustment is convenient, and when a filter screen in a filter chamber fails, it is convenient to close it through the corresponding valve and continue to filter through the filter screen of another filter chamber, so as to ensure non-stop maintenance and replacement operations and ensure work efficiency.

[0037] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The above and other objects, features and advantages of the present invention will become more apparent through a more detailed description of exemplary embodiments of the present invention in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present invention.

[0039] Figure 1 The overall structure diagram of a gas filtering device and a recovery device according to an embodiment of the utility model is shown;

[0040] Figure 2A schematic diagram of the structure of a gas filtering device and a recovery device according to an embodiment of the utility model when the box body is not installed with a mounting plate and a hose;

[0041] Figure 3 A schematic diagram of the internal cross-sectional structure of a gas filtering device and a recovery device according to an embodiment of the utility model is shown;

[0042] Figure 4 A schematic diagram of the internal cross-sectional structure of a heat exchange box of a gas filtering device and a recovery device according to an embodiment of the utility model is shown;

[0043] Figure 5 The invention shows a schematic structural diagram of the filter screen, the mounting button and the handle of a gas filtering device and a recovery device according to an embodiment of the utility model.

[0044] Description of reference numerals:

[0045] 1. Box body; 2. Support legs; 3. Air inlet pipe; 4. Fixed plate; 5. Partition; 6. Door body; 7. Rotating shaft; 8. Rotating motor; 9. Filter; 10. Air outlet seat; 11. Dust exhaust pipe; 12. Hose; 13. Connecting pipe; 14. Mounting plate; 15. Mounting slot; 16. Handle; 17. First threaded hole; 18. Second threaded hole; 19. Heat exchange box; 20. Support rod; 21. Heat exchange tube; 22. Water inlet pipe; 23. Water outlet pipe; 24. First flange; 25. Second flange; 26. Third flange; 27. Cleaning rack; 28. Screw; 29. ​​Adjusting motor; 30. Guide rod. DETAILED DESCRIPTION

[0046] The preferred embodiments of the present invention will be described in more detail below. Although the preferred embodiments of the present invention are described below, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0047] like Figure 1-Figure 3 As shown, the utility model provides a gas filtering device, which comprises:

[0048] A box body 1, an air inlet cavity is provided on one side of the box body 1, the air inlet cavity is provided with an air inlet, two filter cavities are provided on the other side of the box body 1, the filter cavity is provided with an air outlet, a communication port is provided between the filter cavity and the air inlet cavity, and a valve is provided at the communication port;

[0049] Two filter screens 9 are detachably connected in the two filter chambers, and the filter screens 9 are arranged between the air inlet and the connecting port.

[0050] Specifically, in order to solve the problem that when the filtering device of the existing steelmaking converter gas recovery equipment is used for a long time, the filtering effect of the filter screen will be reduced, and it is necessary to stop the operation for maintenance, which affects the recovery efficiency, the utility model provides a gas filtering device, the air inlet is arranged on the upper half of the side wall of the air inlet cavity, the air outlet is arranged on the top of the filter cavity, and the connecting port is arranged on the lower half between the filter cavity and the air inlet cavity. The interior of the box body 1 of the filtering device is divided into an air inlet cavity and two filter cavities, and the two filter screens 9 are detachably connected in the two filter cavities, respectively, the filter screens 9 are used to filter the coal gas, and a connecting port is arranged between each filter cavity and the air inlet cavity, and the connecting port is provided with a valve, and the two valves are respectively used to control the air intake of the two filter cavities, so as to facilitate the air intake adjustment, and when the filter screen 9 in one filter cavity fails, it is closed through the corresponding valve, and the filtering continues through the filter screen 9 of the other filter cavity, so as to ensure the non-stop maintenance and replacement operation and ensure the work efficiency.

[0051] Preferably, the gas filtering device further comprises a fixing plate 4 and a partition plate 5, wherein the fixing plate 4 is arranged inside the box body 1 and between one side and the other side inside the box body 1, and the partition plate 5 is arranged inside the box body 1 and between the other side inside the box body 1 and the fixing plate 4.

[0052] The fixing plate 4 is used to separate the air inlet cavity and the filter cavity, and the partition plate 5 is used to separate the two filter cavities.

[0053] Preferably, the gas filtering device further comprises at least four legs 2 , and the at least four legs 2 are connected to the bottom circumference of the box body 1 .

[0054] Specifically, the four legs 2 are used to support the box body 1 .

[0055] like Figure 3 As shown, preferably, the gas filtering device further comprises:

[0056] A cleaning frame 27, wherein a scraping portion is provided on the peripheral side of the cleaning frame 27, and the scraping portion is in contact with the inner peripheral side of the air inlet cavity;

[0057] The lifting drive mechanism is arranged at the air inlet cavity position, the lifting drive mechanism is connected to the cleaning frame 27, and the lifting drive mechanism is used to drive the cleaning frame 27 to move up and down.

[0058] Preferably, the lifting drive mechanism comprises:

[0059] A screw rod 28, the screw rod 28 is rotatably connected to the inside of the air inlet cavity, a threaded hole is provided on the cleaning frame, and the screw rod 28 is threadedly connected to the threaded hole;

[0060] An adjusting motor 29, which is arranged at the air inlet cavity, and an output end of the adjusting motor 29 is connected to the screw rod 28;

[0061] At least one guide rod 30 is connected to the inside of the air inlet cavity. A guide hole is provided on the cleaning frame 27, and the guide rod 30 is slidably connected to the guide hole.

[0062] Specifically, the adjusting motor 29 is arranged at the bottom of the air inlet cavity, and a guide hole is provided on both sides of the threaded hole on the cleaning frame 27. There are two guide rods 30, and the two guide rods 30 are slidingly connected to the two guide holes respectively. When the adjusting motor 29 drives the screw rod 28 to rotate, under the guidance of the guide rod 30, the cleaning frame 27 can clean the inner wall of the air inlet cavity.

[0063] Preferably, the cleaning frame 27 includes a frame and a beam body, two ends of the beam body are respectively connected to two inner sides of the frame, and threaded holes and guide holes are arranged on the beam body.

[0064] Preferably, the valve comprises:

[0065] Door body 6, door body 6 is flipped and arranged at the communication port position;

[0066] The rotating shaft 7 is rotatably connected to the communication port, and the door body 6 is connected to the rotating shaft 7.

[0067] The rotating motor 8 is arranged at the filter chamber position and at one side of the door body 6 , and the output end of the rotating motor 8 is connected to the rotating shaft 7 .

[0068] Specifically, the rotary motor 8 is connected to the box body 1, the shaft 7 passes through the box body 1, and is connected to the output end of the rotary motor 8. When the rotary motor 8 rotates, the shaft 7 can be driven to rotate, thereby enabling the door body 6 to open and close the communication port.

[0069] like Figure 5 As shown, preferably, one side of the filter cavity is provided with an opening, the filter screen 9 can be inserted into the opening, the side wall of the box body 1 is provided with mounting grooves 15 on both sides of the opening, and the gas filtering device further includes:

[0070] Two mounting plates 14, one side of the two mounting plates 14 is connected to one end of the two filter screens 9 respectively, each mounting plate 14 can be embedded in an opening, and can be embedded in the mounting grooves 15 on both sides of an opening, both sides of the mounting plate 14 are provided with first threaded holes 17, and the mounting grooves 15 on both sides of the opening are provided with second threaded holes 18, and the first threaded holes 17 and the corresponding second threaded holes 18 can be connected by bolts;

[0071] Two handles 16 are connected to the other side of the two mounting plates 14 respectively.

[0072] Specifically, the handle 16 facilitates the insertion of the filter screen 9 into the filter cavity, or facilitates the extraction of the filter screen from the filter cavity. When the first threaded hole 17 is connected to the corresponding second threaded hole 18 by bolts, the installation of the filter screen 9 can be locked.

[0073] Preferably, the gas filtering device further comprises:

[0074] An air inlet pipe 3, one end of which is connected to the air inlet, and the other end of which is provided with a first flange 24;

[0075] The hose 12 has second flanges 25 at both ends, and the first flange 24 is connected to the second flange 25 at one end by bolts;

[0076] The connecting pipe 13 has third flanges 26 at both ends thereof, and the third flange 26 at one end is connected to the second flange 25 at the other end by bolts.

[0077] Specifically, the hose 12 can be easily disassembled by means of flange connection.

[0078] Preferably, a dust exhaust port is provided at the bottom of the filter cavity, and the gas filtering device further comprises two dust exhaust pipes 11, and one end of the two dust exhaust pipes 11 is respectively connected to the two dust exhaust ports.

[0079] A gas recovery device, comprising:

[0080] Gas filtering device;

[0081] A heat exchanger is communicated with the two air outlets.

[0082] Specifically, the heat exchanger facilitates heat recovery.

[0083] like Figure 4 As shown, preferably, the heat exchanger comprises:

[0084] Heat exchange box 19;

[0085] The heat exchange tube 21 is provided with a plurality of bending parts. The heat exchange tube 21 is arranged in the heat exchange box 19. One end of the heat exchange tube 21 passes through the top of the heat exchange box 19, and the other end of the heat exchange tube 21 passes through the bottom of the heat exchange box 19. The other end of the heat exchange tube 21 is connected to the two air outlets.

[0086] A water inlet pipe 22, the water inlet pipe 22 passes through one end of the heat exchange box 19;

[0087] The water outlet pipe 23 runs through the other end of the heat exchange box 19 .

[0088] Specifically, it is convenient for water to enter and exit the heat exchange box 19, so that water can absorb the heat of the coal gas.

[0089] Preferably, the gas recovery device further comprises at least four support rods 20, the at least four support rods 20 are arranged between the heat exchanger and the box body 1, and the at least four support rods 20 are distributed along the periphery.

[0090] Specifically, the support rod 20 is used to support the heat exchanger.

[0091] Preferably, the gas recovery device also includes a gas outlet seat 10, which is a three-way pipe, the two air inlet ends of the three-way pipe are respectively connected to the air outlets of the two filter chambers, and the air outlet end of the three-way pipe is connected to the other end of the heat exchange tube 21.

[0092] In summary, when the gas filtering device of the utility model is applied to the gas recovery equipment, it can solve the problem that when the filtering device of the existing steelmaking converter gas recovery equipment is used for a long time, the filtering effect of the filter screen will be reduced, and it is necessary to stop the work for maintenance, which affects the recovery efficiency. The specific solution is through the design of the fixed plate 4, the partition 5 and the door body 6. The fixed plate 4 and the partition 5 cooperate to separate the interior of the box body 1. The two door bodies 6 are rotated and respectively set at the two connecting port positions to control the air intake of the two filter chambers respectively, which is convenient for air intake adjustment. When the filter screen 9 in one filter chamber fails, it is convenient to close the corresponding door body and continue to filter through the filter screen 9 of the other filter chamber, ensuring that the maintenance and replacement operation does not stop the work, and ensuring work efficiency.

[0093] It can also solve the problem that when the device is installed, in order to facilitate installation and connection, it is generally necessary to connect through a hose, the hose is prone to failure after long-term use, and it is inconvenient to replace and repair. The specific solution is to facilitate the disassembly and assembly of the hose 12 through the cooperation of the first flange 24 and the second flange 25, and the cooperation of the third flange 26 and the second flange 25. Once the hose 12 has a problem, it can be disassembled for maintenance, which is very convenient.

[0094] It can also solve the problem that when the gas filter device is in use, a large amount of dust and impurities remain on the inner wall of the air inlet chamber and there is a lack of a suitable cleaning mechanism. The specific solution is that through the design of the cleaning frame 27, when the adjustment motor 29 drives the screw 28 to rotate, the screw 28 is threadedly matched with the threaded hole, and the guide rod 30 is guided by the guide hole, which facilitates the lifting and lowering adjustment of the cleaning frame 27 and facilitates the cleaning of the inner wall of the air inlet chamber.

[0095] The various embodiments of the utility model have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A gas filtering device, characterized in that: The filtering device comprises: A box body, wherein an air inlet cavity is provided on one side of the box body, the air inlet cavity is provided with an air inlet port, two filter cavities are provided on the other side of the box body, the filter cavities are provided with an air outlet, a communication port is provided between the filter cavity and the air inlet cavity, and the communication port is provided with a valve; Two filter screens are respectively detachably connected in the two filter chambers, and the filter screens are arranged between the air inlet and the communication port.

2. A gas filtering device according to claim 1, characterized in that: The gas filtering device also includes: A cleaning frame, wherein a scraping portion is provided on the peripheral side of the cleaning frame, and the scraping portion is in contact with the inner peripheral side of the air inlet cavity; A lifting drive mechanism is arranged at the air inlet cavity position, the lifting drive mechanism is connected to the cleaning frame, and the lifting drive mechanism is used to drive the cleaning frame to move up and down.

3. A gas filtering device according to claim 2, characterized in that: The lifting drive mechanism comprises: A screw rod, the screw rod being rotatably connected to the inside of the air inlet cavity, the cleaning frame being provided with a threaded hole, the screw rod being threadedly connected to the threaded hole; An adjusting motor, wherein the adjusting motor is arranged at the air inlet cavity position, and an output end of the adjusting motor is connected to the screw rod; At least one guide rod is connected to the inside of the air inlet cavity, a guide hole is provided on the cleaning frame, and the guide rod is slidably connected to the guide hole.

4. A gas filtering device according to claim 3, characterized in that: The cleaning frame comprises a frame and a beam body, two ends of the beam body are respectively connected to two inner sides of the frame, and the threaded hole and the guide hole are arranged on the beam body.

5. A gas filtering device according to claim 1, characterized in that: The valve comprises: A door body, the door body is flipped and arranged at the position of the communication port; A rotating shaft, the rotating shaft is rotatably connected to the communication port, and the door body is connected to the rotating shaft; A rotating motor is arranged at the filter chamber position and at one side of the door body, and an output end of the rotating motor is connected to the rotating shaft.

6. A gas filtering device according to claim 1, characterized in that: One side of the filter cavity is provided with an opening, the filter screen can be inserted into the opening, the side wall of the box body is provided with mounting grooves on both sides of the opening, and the gas filtering device further includes: Two mounting plates, one side of each mounting plate is connected to one end of each filter screen, each mounting plate can be embedded in one of the openings, and can be embedded in the mounting grooves on both sides of one of the openings, both sides of the mounting plate are provided with first threaded holes, and both sides of the mounting grooves of the opening are provided with second threaded holes, and the first threaded holes and the corresponding second threaded holes can be connected by bolts; Two handles are respectively connected to the other side of the two mounting plates.

7. A gas filtering device according to claim 1, characterized in that: The gas filtering device also includes: An air inlet pipe, one end of which is connected to the air inlet, and the other end of which is provided with a first flange; A hose, wherein both ends of the hose are provided with second flanges, and the first flange is connected to the second flange at one end by bolts; A connecting pipe, wherein two ends of the connecting pipe are provided with third flanges, and the third flange at one end is connected to the second flange at the other end by bolts.

8. A gas filtering device according to claim 1, characterized in that: A dust exhaust port is provided at the bottom of the filter cavity, and the gas filtering device further comprises two dust exhaust pipes, one end of the two dust exhaust pipes being respectively connected to the two dust exhaust ports.

9. A gas recovery device, characterized in that: include: A gas filtering device according to any one of claims 1 to 8; A heat exchanger is connected to the two air outlets.

10. A gas recovery device according to claim 9, characterized in that: The heat exchanger comprises: Heat exchange box; A heat exchange tube, wherein the heat exchange tube is provided with a plurality of bending portions, the heat exchange tube is arranged in the heat exchange box, one end of the heat exchange tube passes through the top of the heat exchange box, the other end of the heat exchange tube passes through the bottom of the heat exchange box, and the other end of the heat exchange tube is connected to the two air outlets; A water inlet pipe, the water inlet pipe passes through one end of the heat exchange box; A water outlet pipe runs through the other end of the heat exchange box.

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