Tail gas filtering device in nonferrous metal preparation process

Abstract

The utility model relates to the technical field of tail gas filtering treatment, in particular to a tail gas filtering device in a non-ferrous metal preparation process. The non-ferrous metal particles attached to the filter cylinder can be automatically removed without disassembling the machine, the non-ferrous metal particles are recycled, and operation is convenient and fast; comprising a flue, a folded-edge filter cartridge and a removal assembly used for adsorbing nonferrous metal particles at the folded-edge filter cartridge, a blocking blind plate is installed at an outlet of the flue, a smoke exhaust pipe communicated with the interior of the flue is arranged on the blocking blind plate, the folded-edge filter cartridge is rotatably installed on the blocking blind plate, an axial flow impeller is fixedly installed at the windward end of the folded-edge filter cartridge, and the axial flow impeller is fixedly connected with an air inlet of the folded-edge filter cartridge. The removing assembly comprises a collecting hopper installed on the blocking blind plate in a hinged mode and a plurality of scraping pieces evenly distributed in the collecting hopper, and a pushing piece making contact with the bottom of the collecting hopper is installed at the flue in a screwed mode. The flue is provided with a spiral discharging pipeline communicated with the interior of the flue, and the discharging end of the collecting hopper extends into the spiral discharging pipeline.

Description

Technical Field

[0001] The utility model relates to the technical field of tail gas filtering treatment, in particular to a tail gas filtering device in the process of non-ferrous metal preparation. Background Art

[0002] As we all know, non-ferrous metal preparation refers to the production process of separating associated elements from ores, concentrates, secondary resources or other materials to produce non-ferrous metals or their compounds. A large amount of exhaust gas will be generated during the preparation of non-ferrous metals, and the exhaust gas contains more non-ferrous metal particles. This part of non-ferrous metal particles will not only cause environmental pollution but also cause waste of non-ferrous metals if directly discharged into the atmosphere. Therefore, filtration and recovery of non-ferrous metal exhaust gas is imperative.

[0003] The Chinese utility model patent discloses a sulfonated tail gas filtration system (publication (announcement) number CN217220673U), including a first tail gas filter tank, a second tail gas filter tank and a filter inner cylinder, the first tail gas filter tank and the second tail gas filter tank are spliced ​​and combined by threaded fixing, the first tail gas filter tank and the second tail gas filter tank are both provided with a filter inner cylinder inside, and the inside of the filter inner cylinder is filled with activated carbon adsorption particles, and the first tail gas filter tank and the second tail gas filter tank are both provided with a detachable baffle at the end surface of the inner cavity, and the baffle is provided with a vent hole. It is connected by the first tail gas filter tank and the second tail gas filter tank combination, and the end of the first tail gas filter tank is provided with a connecting sleeve, and the end of the second tail gas filter tank is provided with a first screw head, which is threadedly fixed with the connecting sleeve by the first screw head, and the end surface of the first tail gas filter tank and the second tail gas filter tank is provided with a detachable baffle, and hand handles are provided on both sides of the side of the baffle to facilitate installation and disassembly.

[0004] However, when the inventors implemented this device, they found the following defects: although the non-ferrous metal particles can be filtered and adsorbed by the filter cartridge, the adsorbed non-ferrous metal particles adhere to the filter cartridge, and the filter cartridge often needs to be removed to recover the non-ferrous metal particles, which is inconvenient to operate. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides an exhaust gas filtering device in the non-ferrous metal preparation process which can automatically remove non-ferrous metal particles attached to the filter cartridge without disassembling the machine and recover the non-ferrous metal particles, and is easy to operate.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an exhaust gas filtering device in the process of non-ferrous metal preparation, comprising a flue, a pleated filter cartridge and a removal component for adsorbing non-ferrous metal particles at the pleated filter cartridge, a blocking blind plate is installed at the outlet of the flue, a smoke exhaust pipe connected to the inside of the flue is provided on the blocking blind plate, the pleated filter cartridge is rotatably installed on the blocking blind plate, an axial flow impeller is fixedly installed on the windward end of the pleated filter cartridge, the removal component comprises a collecting bucket hingedly installed on the blocking blind plate and a plurality of scrapers evenly distributed in the collecting bucket, a pushing piece in contact with the bottom of the collecting bucket is screwed on the flue; a spiral discharge pipe connected to the inside of the flue is provided on the flue, and the discharge end of the collecting bucket extends into the spiral discharge pipe; further, the pleated filter cartridge comprises a cylinder body and a bent filter material arranged in a bent shape around the cylinder body.

[0007] As a preferred embodiment, a vortex generator is installed in the flue, and the vortex generator includes a shell fixedly installed in the flue, a driving impeller rotatably installed at the windward end of the shell, and a driving motor installed in the shell and providing power for the driving impeller to rotate.

[0008] As a preferred solution, it further comprises a cyclone separator, the discharge end of the spiral discharge pipe extends into the cyclone separator along the tangential direction of the cyclone separator, and a discharge pipe is provided at the bottom of the cyclone separator.

[0009] As a preferred solution, it also includes a return pipe, one end of which extends from the top of the cyclone separator into the cyclone separator, and the other end of which extends into one side of the air inlet in the flue.

[0010] As a preferred solution, the push member includes a screw rod, a push rod and a spring. The screw rod is provided with a hollow cavity. The push rod can be slidably installed in the hollow cavity on the screw rod. The spring is sleeved on the push rod. The push rod is elastically connected to the screw rod through the spring.

[0011] As a preferred embodiment, it also includes a hinge and a torsion spring. The collecting bucket is hinged to the sealing blind plate through the hinge, and the collecting bucket is elastically connected to the sealing blind plate through the torsion spring. Furthermore, the torsion spring is sleeved on the rotating shaft on the hinge. Under the action of the torsion spring, the end of the collecting bucket away from the sealing blind plate tilts downward.

[0012] As a preferred solution, the blocking blind plate is detachably connected to the flue by bolts.

[0013] Compared with the prior art, the utility model provides an exhaust gas filtering device in the process of preparing non-ferrous metals, which has the following beneficial effects: the exhaust gas filtering device in the process of preparing non-ferrous metals, by introducing the exhaust gas into the flue, the corrugated filter cartridge adsorbs the non-ferrous metal particles in the exhaust gas, and at the same time, under the action of the exhaust gas, the axial flow impeller drives the corrugated filter cartridge to rotate, when the non-ferrous metal particles on the corrugated filter cartridge gather to a certain amount, the collecting bucket is pushed by the pushing member until the scraper on the collecting bucket contacts the outer wall of the corrugated filter cartridge, under the action of the scraper, the non-ferrous metal particles attached to the corrugated filter cartridge fall into the collecting bucket and slide into the spiral discharge pipe through the collecting bucket, and the non-ferrous metal particles discharged from the spiral discharge pipe can be recovered, and the non-ferrous metal particles attached to the filter cartridge can be automatically removed and the non-ferrous metal particles can be recovered without disassembling the machine, and the operation is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0015] Figure 2 It is a rear view planar structural schematic diagram of the utility model;

[0016] Figure 3 The utility model Figure 2 Schematic diagram of the cross-section structure at AA in the middle;

[0017] Figure 4 The utility model Figure 3 Schematic diagram of the cross-section structure at BB in the middle;

[0018] Figure 5 It is a three-dimensional structural schematic diagram of the removal component and the pleated filter cartridge of the utility model;

[0019] Markings in the attached drawing: 1. flue; 2. pleated filter cartridge; 3. sealing blind plate; 4. exhaust pipe; 5. axial flow impeller; 6. scraper; 7. spiral discharge pipe; 8. casing; 9. driving impeller; 10. driving motor; 11. cyclone separator; 12. discharge pipe; 13. reflux pipe; 14. screw; 15. push rod; 16. spring; 17. hinge; 18. torsion spring; 19. collecting bucket. DETAILED DESCRIPTION

[0020] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0021] As described in the background technology, a sulfonated exhaust gas filtration system can filter and adsorb non-ferrous metal particles through filter cartridges and activated carbon adsorption particles. However, the adsorbed non-ferrous metal particles adhere to the filter cartridge, and the filter cartridge often needs to be removed to recover the non-ferrous metal particles, which is inconvenient to operate.

[0022] In order to solve this technical problem, the utility model provides an exhaust gas filtering device in a non-ferrous metal preparation process, which is used for filtering and recovering non-ferrous metal particles in the exhaust gas.

[0023] Specifically, please refer to Figure 1-4 The exhaust gas filtration device in the non-ferrous metal preparation process specifically includes: a flue 1, a pleated filter cartridge 2 and a removal component for adsorbing non-ferrous metal particles at the pleated filter cartridge 2. A blocking blind plate 3 is installed at the outlet of the flue 1, and a smoke exhaust pipe 4 connected to the inside of the flue 1 is provided on the blocking blind plate 3. The pleated filter cartridge 2 is rotatably installed on the blocking blind plate 3, and an axial flow impeller 5 is fixedly installed on the windward end of the pleated filter cartridge 2. The removal component includes a collecting bucket 19 hingedly installed on the blocking blind plate 3 and a plurality of scrapers 6 evenly distributed in the collecting bucket 19. A pushing piece in contact with the bottom of the collecting bucket 19 is screwed on the flue 1; a spiral discharge pipe 7 connected to the inside of the flue 1 is provided on the flue 1, and the discharge end of the collecting bucket 19 extends into the spiral discharge pipe 7; further, the pleated filter cartridge 2 includes a cylinder body and a bent filter material arranged around the cylinder body in a bent shape.

[0024] The utility model provides an exhaust gas filtering device in the process of non-ferrous metal preparation. The exhaust gas is introduced into the flue 1, and the corrugated filter cartridge 2 adsorbs the non-ferrous metal particles in the exhaust gas. At the same time, under the action of the exhaust gas, the axial flow impeller 5 drives the corrugated filter cartridge 2 to rotate. When the non-ferrous metal particles on the corrugated filter cartridge 2 gather to a certain amount, the collecting bucket 19 is pushed by the pushing member until the scraper 6 on the collecting bucket 19 contacts the outer wall of the corrugated filter cartridge 2. The scraper 6 frequently contacts and separates from the corrugated filter cartridge 2, forming a vibration and knocking effect on the corrugated filter cartridge 2. Under the action of the scraper 6, the non-ferrous metal particles attached to the corrugated filter cartridge 2 fall into the collecting bucket 19 and slide into the spiral discharge pipe 7 through the collecting bucket 19. The non-ferrous metal particles discharged from the spiral discharge pipe 7 can be recovered. The non-ferrous metal particles attached to the filter cartridge can be automatically removed and the non-ferrous metal particles can be recovered without disassembling the machine. The operation is convenient.

[0025] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings.

[0026] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0027] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0028] Example 1

[0029] Please refer to Figure 1-3 , an exhaust gas filtering device in a non-ferrous metal preparation process, comprising: a flue 1, a pleated filter cartridge 2 and a removal component for adsorbing non-ferrous metal particles at the pleated filter cartridge 2, a blocking blind plate 3 is installed at the outlet of the flue 1, a smoke exhaust pipe 4 connected to the inside of the flue 1 is provided on the blocking blind plate 3, the pleated filter cartridge 2 is rotatably mounted on the blocking blind plate 3, an axial flow impeller 5 is fixedly mounted on the windward end of the pleated filter cartridge 2, and the removal component comprises a collecting bucket 19 hingedly mounted on the blocking blind plate 3 and a smoke exhaust pipe 4 evenly distributed on the flue 1. There are multiple scrapers 6 in the collecting bucket 19, and a push piece in contact with the bottom of the collecting bucket 19 is screwed on the flue 1; a spiral discharge pipe 7 communicating with the inside of the flue 1 is provided on the flue 1, and the discharge end of the collecting bucket 19 extends into the spiral discharge pipe 7; a vortex generator is installed in the flue 1, and the vortex generator includes a shell 8 fixedly installed in the flue 1, a driving impeller 9 rotatably installed on the windward end of the shell 8, and a driving motor 10 installed in the shell 8 and providing power for the driving impeller 9 to rotate.

[0030] In the exhaust gas filtration device in the non-ferrous metal preparation process provided in this embodiment, the driving motor 10 drives the driving impeller 9 to rotate, so that the exhaust gas entering the flue 1 forms a vortex. Under the action of the centrifugal force of the vortex, some non-ferrous metal particles in the exhaust gas can be directly discharged from the spiral discharge pipe 7, thereby reducing the amount of non-ferrous metal attached to the pleated filter cartridge 2 and reducing the frequency of cleaning the non-ferrous metal attached to the pleated filter cartridge 2.

[0031] Example 2

[0032] The tail gas filtration device in the non-ferrous metal preparation process provided in Example 1 is further optimized. Specifically, Figure 1-4 As shown, it also includes a cyclone separator 11, the discharge end of the spiral discharge pipe 7 extends tangentially into the cyclone separator 11, and a discharge pipe 12 is provided at the bottom of the cyclone separator 11; it also includes a reflux pipe 13, one end of the reflux pipe 13 extends from the top of the cyclone separator 11 into the cyclone separator 11, and the other end of the reflux pipe 13 extends to one side of the air inlet in the flue 1.

[0033] The exhaust gas filtration device provided in the non-ferrous metal preparation process of this embodiment, the non-ferrous metal particles discharged from the spiral discharge pipe 7 enter the cyclone separator 11, under the action of the cyclone separator 11, the non-ferrous metal particles settle downward and are discharged through the discharge pipe 12, so that the operator can recover the non-ferrous metal particles, and part of the exhaust gas re-enters the flue 1 through the reflux pipe 13 to avoid excessive escape of gas components in the exhaust gas.

[0034] Example 3

[0035] The tail gas filtration device in the nonferrous metal preparation process provided in Example 1 or 2 is further optimized, such as Figure 3 As shown, the push member includes a screw rod 14, a push rod 15 and a spring 16. A hollow cavity is provided in the screw rod 14. The push rod 15 can be slidably installed in the hollow cavity on the screw rod 14. The spring 16 is sleeved on the push rod 15. The push rod 15 is elastically connected to the screw rod 14 through the spring 16.

[0036] In the exhaust gas filtration device provided in the non-ferrous metal preparation process, the screw 14 can realize the lifting and lowering feeding adjustment of the push piece, and the push rod 15 and the spring 16 can realize the elastic contact between the push piece and the collecting bucket 19. In the process of removing the non-ferrous metal particles on the pleated filter cartridge 2, the collecting bucket 19 moves up and down after being driven by the scraper 6. Under the action of the push rod 15 and the spring 16, the up and down vibration effect of the collecting bucket 19 can be improved, thereby facilitating the non-ferrous metal particles collected in the collecting bucket 19 to slide out of the collecting bucket 19 by themselves.

[0037] Specifically, it also includes a hinge 17 and a torsion spring 18. The collecting bucket 19 is hinged to the blocking blind plate 3 through the hinge 17, and the collecting bucket 19 is elastically connected to the blocking blind plate 3 through the torsion spring 18; further, the torsion spring 18 is sleeved on the rotating shaft on the hinge 17, and under the action of the torsion spring 18, the end of the collecting bucket 19 away from the blocking blind plate 3 tilts downward; the collecting bucket 19 and the blocking blind plate 3 are movably connected through the hinge 17, and the torsion spring 18 can cause the discharge end of the collecting bucket 19 to tilt downward, so as to avoid excessive rotation of the collecting bucket 19 due to excessive wind pressure inside the flue 1, which causes excessive contact between the scraper 6 and the corrugated filter cartridge 2, thereby preventing the scraper 6 from interfering with the rotation of the corrugated filter cartridge 2.

[0038] Specifically, the blocking blind plate 3 is detachably connected to the flue 1 by bolts; the inside of the flue 1 can be maintained and repaired by detaching the blocking blind plate 3 from the flue 1, thereby improving the convenience of subsequent maintenance and repair.

[0039] The use process of the exhaust gas filtering device in the non-ferrous metal preparation process provided by the utility model is as follows: by introducing the exhaust gas into the flue 1, the corrugated filter cartridge 2 adsorbs the non-ferrous metal particles in the exhaust gas, and at the same time, under the action of the exhaust gas, the axial flow impeller 5 drives the corrugated filter cartridge 2 to rotate. When the non-ferrous metal particles on the corrugated filter cartridge 2 gather to a certain amount, the collecting bucket 19 is pushed by the pushing member until the scraper 6 on the collecting bucket 19 contacts the outer wall of the corrugated filter cartridge 2. Under the action of the scraper 6, the non-ferrous metal particles attached to the corrugated filter cartridge 2 fall into the collecting bucket 19 and slide into the spiral discharge pipe 7 through the collecting bucket 19. The non-ferrous metal particles discharged from the spiral discharge pipe 7 enter the cyclone separator 11. Under the action of the cyclone separator 11, the non-ferrous metal particles settle downward and are discharged through the discharge pipe 12, and the exhaust gas re-enters the flue 1 through the reflux pipe 13, and the non-ferrous metal particles discharged from the discharge pipe 12 can be recovered.

[0040] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] Obviously, the embodiments described above are only some embodiments of the utility model, rather than all embodiments. The preferred embodiments of the utility model are given in the accompanying drawings, but they do not limit the patent scope of the utility model. The utility model can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the utility model more thorough and comprehensive. Although the utility model is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to replace some of the technical features therein with equivalents. Any equivalent structure made using the contents of the utility model specification and the accompanying drawings, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the utility model.

Claims

1. An exhaust gas filtration device in a non-ferrous metal preparation process, characterized in that: The invention comprises a flue (1), a pleated filter cartridge (2) and a removal component for non-ferrous metal particles adsorbed on the pleated filter cartridge (2); a blocking blind plate (3) is installed at the outlet of the flue (1); a smoke exhaust pipe (4) communicating with the inside of the flue (1) is provided on the blocking blind plate (3); the pleated filter cartridge (2) is rotatably mounted on the blocking blind plate (3); and an axial flow impeller (5) is fixedly mounted on the windward end of the pleated filter cartridge (2); The removal component comprises a collecting bucket (19) hingedly mounted on the blocking blind plate (3) and a plurality of scrapers (6) evenly distributed in the collecting bucket (19); a pushing member in contact with the bottom of the collecting bucket (19) is screwed on the flue (1); a spiral discharge pipe (7) communicating with the interior of the flue (1) is provided on the flue (1); and a discharge end of the collecting bucket (19) extends into the spiral discharge pipe (7).

2. The tail gas filtration device in the non-ferrous metal preparation process according to claim 1, characterized in that: A swirl generator is installed in the flue (1), and the swirl generator comprises a housing (8) fixedly installed in the flue (1), a driving impeller (9) rotatably installed at the windward end of the housing (8), and a driving motor (10) installed in the housing (8) and providing power for the driving impeller (9) to rotate.

3. The tail gas filtration device in the non-ferrous metal preparation process according to claim 2, characterized in that: It also comprises a cyclone separator (11), wherein the discharge end of the spiral discharge pipe (7) extends into the cyclone separator (11) along the tangential direction of the cyclone separator (11), and a discharge pipe (12) is provided at the bottom of the cyclone separator (11).

4. The tail gas filtration device in the non-ferrous metal preparation process according to claim 3, characterized in that: It also comprises a return pipe (13), one end of which extends from the top of the cyclone separator (11) into the cyclone separator (11), and the other end of which extends into one side of the air inlet in the flue (1).

5. The tail gas filtration device in the non-ferrous metal preparation process according to claim 1, characterized in that: The push member comprises a screw rod (14), a push rod (15) and a spring (16); a hollow cavity is provided in the screw rod (14); the push rod (15) can be slidably installed in the hollow cavity on the screw rod (14); the spring (16) is sleeved on the push rod (15); and the push rod (15) is elastically connected to the screw rod (14) via the spring (16).

6. The tail gas filtering device in the non-ferrous metal preparation process according to claim 5, characterized in that: It also comprises a hinge (17) and a torsion spring (18); the collecting bucket (19) is hingedly connected to the blocking blind plate (3) via the hinge (17); and the collecting bucket (19) is elastically connected to the blocking blind plate (3) via the torsion spring (18).

7. The tail gas filtering device in the non-ferrous metal preparation process according to claim 1, characterized in that: The blocking blind plate (3) is detachably connected to the flue (1) via bolts.

Images