Cuprous cyanide tail gas absorption device

Abstract

The utility model relates to the technical field of chemical tail gas treatment equipment, in particular to a cuprous cyanide tail gas absorption device, which is characterized in that waste gas discharged into a gas inlet pipe is primarily filtered through a filter screen cavity, waste residues mixed in the waste gas are filtered on the filter screen cavity, and meanwhile, through a cleaning scraping block, when the cleaning scraping block rotates, the waste residues in the waste gas are removed. The waste residues adsorbed on the filter screen cavity can be cleaned, the scraped waste residues fall into the discharging cavity channel along the primary filter cavity, a water absorption sponge and an atomization spray head are arranged, when waste gas passes through the channel, under the action of the atomization spray head, the atomization spray head makes contact with the waste gas and absorbs cuprous cyanide, and under the action of the atomization spray head, cuprous cyanide in the waste gas passes through the channel. The atomizing nozzle wets the water-absorbing sponge, meanwhile, the waste gas flows through the pore channels in the water-absorbing sponge again, is absorbed and treated again and is finally discharged through the outlet, and the collected waste water is retained in the water collecting cavity.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical tail gas treatment equipment, in particular to a cuprous cyanide tail gas absorption device. Background Art

[0002] Cuprous cyanide is an important chemical raw material. During the production process, it will produce tail gas containing cyanide. If these tail gases are discharged directly without proper treatment, they will cause serious harm to the environment and human health. Most of the existing cuprous cyanide tail gas absorption devices use chemical absorption methods to purify the tail gas by spraying liquid absorbent.

[0003] However, the prior art still has the following problems:

[0004] 1. The spraying device of the current tail gas absorption device cannot fully contact the tail gas when spraying the liquid absorbent, resulting in unsatisfactory effect in treating cuprous cyanide tail gas, low absorption efficiency, and the treated tail gas still contains a large amount of cyanide.

[0005] 2. The traditional chemical tail gas purification treatment device based on cuprous cyanide has a simple filtering method, which is to perform preliminary filtration on the tail gas through the filter. Since the tail gas contains a large amount of particulate matter, when the tail gas is in contact with the filter for a long time, the filter is easily blocked, which is not easy to clean.

[0006] Therefore, a cuprous cyanide tail gas absorption device is urgently needed to solve the problems arising in the above-mentioned background technology. Utility Model Content

[0007] In order to solve the problems of poor spraying effect and inconvenience in cleaning the filter screen of the current tail gas absorption device, a cuprous cyanide tail gas absorption device is invented.

[0008] The technical solution of the utility model is to include a fixed cavity, wherein a primary filter cavity is arranged in the fixed cavity, a filter cavity which can move up and down is arranged in the primary filter cavity, a rotatable rotating frame is arranged in the fixed cavity, a driving motor is arranged on the fixed cavity, a driving gear is arranged at the output end of the driving motor, a driven gear meshed with the driving gear is arranged at the upper end of the rotating frame, a plurality of cleaning scrapers which can clean the side wall of the filter cavity are arranged on the rotating frame, a channel is opened between the fixed cavity and the primary filter cavity, an atomizing nozzle which can spray absorbent into the channel is arranged at the top of the fixed cavity, a liquid storage cavity which is connected with the atomizing nozzle is arranged on the fixed cavity, a water collecting cavity is arranged at the lower end of the fixed cavity, a water absorbing sponge is arranged at the top of the water collecting cavity, and an exhaust pipe located at the lower side of the water absorbing sponge is arranged in the water collecting cavity.

[0009] Preferably, an air intake pipe is provided in the middle of the fixed cavity, a compression spring is provided on the air intake pipe, the lower end of the compression spring is fixedly connected to the filter cavity, and the filter cavity and the air intake can slide relative to each other.

[0010] Preferably, a fixing ring is provided at the lower end of the filter cavity, a plurality of fixing protrusions are provided on the lower end surface of the fixing ring, a rotating ring corresponding to the fixing ring is provided at the lower end of the rotating frame, and a rotating protrusion that can slide on the fixing ring is provided on the upper end surface of the rotating ring.

[0011] Preferably, a plurality of holes connected to the channel are provided at the upper end of the water-absorbing sponge, the upper end of the hole is provided as an inlet, and the outlet of the hole is located at the lower end of the water-absorbing sponge.

[0012] Preferably, a discharge cavity is provided at the lower end of the primary filter cavity, a tension spring is provided in the discharge cavity, a conical block is provided at the lower end of the tension spring, and the conical block can slide in the discharge cavity.

[0013] Compared with the prior art, the technical solution of the utility model can achieve the following beneficial effects:

[0014] (1) The exhaust gas discharged from the air intake pipe is initially filtered through the filter cavity, and the waste residue mixed therein is filtered on the filter cavity. At the same time, the cleaning scraper can clean the waste residue adsorbed on the filter cavity while the cleaning scraper rotates. The scraped waste residue falls into the discharge cavity along the primary filter cavity;

[0015] (2) Through the fixed ring and the rotating ring, when the rotating ring rotates, the rotating protrusion on the upper end of the rotating ring contacts with the fixed protrusion on the fixed ring, so that the filter cavity continuously vibrates up and down, which is conducive to the vibration removal of waste residues on the filter cavity that are inconvenient to clean;

[0016] (3) A water-absorbing sponge and an atomizing nozzle are arranged. When the exhaust gas passes through the channel, the atomizing nozzle contacts the exhaust gas and absorbs the cuprous cyanide. The atomizing nozzle wets the water-absorbing sponge. At the same time, the exhaust gas flows through the pores in the water-absorbing sponge again, is absorbed and processed again, and is finally discharged through the outlet. The collected wastewater is retained in the water collecting chamber.

[0017] The technical solution of the utility model has broad application prospects in the technical field of chemical tail gas treatment equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is an axonometric drawing of the present utility model.

[0019] Figure 2 It is the front view of the utility model.

[0020] Figure 3 It is a front view full cutaway view of the utility model.

[0021] Figure 4 It is a top view of the utility model.

[0022] Figure 5 It is an enlarged view of the filter cavity of the present utility model.

[0023] Among them, 1. fixed cavity, 2. primary filter cavity, 3. filter cavity, 4. rotating frame, 5. driving motor, 6. driving gear, 7. driven gear, 8. cleaning scraper, 9. channel, 10. atomizing nozzle, 11. liquid storage cavity, 12. water collecting cavity, 13. water absorbing sponge, 14. exhaust pipe, 15. intake pipe, 16. compression spring, 17. fixed ring, 18. fixed protrusion, 19. rotating ring, 20. rotating protrusion, 21. channel, 22. discharge cavity, 23. tension spring, 24. conical block. DETAILED DESCRIPTION

[0024] The following will clearly and completely describe the technical solutions of various embodiments of the utility model in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model. In the description of the utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0025] In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0026] like Figure 1~Figure 5The cuprous cyanide tail gas absorption device shown includes a fixed chamber 1. A specific embodiment is that three fixed brackets are welded on the outside of the fixed chamber 1 to facilitate supporting the device. A primary filter chamber 2 is fixedly connected to the fixed chamber 1. The primary filter chamber 2 is located in the middle position of the fixed chamber 1. The lower side of the primary filter chamber 2 is opened in a funnel shape to facilitate the collection of waste residues.

[0027] like Figure 1~Figure 5 The cuprous cyanide tail gas absorption device shown in the figure is a specific embodiment as follows: a filter cavity 3 which can move up and down is arranged in the primary filter cavity 2, the filter cavity 3 is located in the middle of the primary filter cavity 2, a plurality of filter holes are opened on the filter cavity 3, the gas discharged from the air inlet pipe 15 is mixed with particulate matter, and when the exhaust gas passes through the filter cavity 3, the waste residue is retained on the filter, a rotatable rotating frame 4 is rotatably connected in the fixed cavity 1, a driving motor 5 is fixedly connected to the fixed cavity 1, a driving gear 6 is fixedly connected to the output end of the driving motor 5, a driven gear 7 meshing with the driving gear 6 is fixedly connected to the upper end of the rotating frame 4, in this embodiment, the driving motor 5 drives the driving gear 6 to rotate, the driving gear 6 drives the driven gear 7 to rotate, and the driven gear 7 drives the rotating frame 4 to rotate.

[0028] like Figure 1~Figure 5 The cuprous cyanide tail gas absorption device shown in the figure is a specific embodiment in which four cleaning scrapers 8 for cleaning the side walls of the filter cavity 3 are fixedly connected to the rotating frame 4. When the rotating frame 4 rotates, the cleaning scrapers 8 drive the filter cavity 3 to clean and scrape. An air inlet pipe 15 is fixedly connected to the middle of the fixed cavity 1. A compression spring 16 is fixedly mounted on the air inlet pipe 15. The lower end of the compression spring 16 is fixedly connected to the filter cavity 3. The filter cavity 3 and the air inlet can slide relatively. A fixing ring 17 is fixedly connected to the lower end of the filter cavity 3. A plurality of fixing protrusions 18 are provided on the lower end surface of the fixing ring 17. The lower end of the movable frame 4 is fixedly connected with a rotating ring 19 corresponding to the fixed ring 17. A rotating protrusion 20 that can slide on the fixed ring 17 is provided on the upper end surface of the rotating ring 19. When the rotating frame 4 rotates, it drives the rotating ring 19 to rotate. When the rotating protrusion 20 on the rotating ring 19 contacts with the fixed protrusion 18 on the fixed ring 17, the filter cavity 3 is driven to move upward. Thereafter, when the rotating protrusion 20 contacts with any one of the fixed protrusions 18, the filter cavity 3 is driven to move upward once, so that the filter cavity 3 vibrates, which is beneficial to the vibration removal of waste residues on the filter cavity 3 that are inconvenient to clean.

[0029] like Figure 1~Figure 5The cuprous cyanide tail gas absorption device shown in the figure is a specific embodiment, wherein a channel 9 is provided between the fixed chamber 1 and the primary filter chamber 2, the channel 9 is used for the passage of gas after filtering the waste residue, an atomizing nozzle 10 for spraying an absorbent to the channel 9 is provided at the top of the fixed chamber 1, a liquid storage chamber 11 connected to the atomizing nozzle 10 is fixedly connected to the fixed chamber 1, and is convenient for providing the absorbent to the atomizing nozzle 10, a water collection chamber 12 is fixedly connected to the lower end of the fixed chamber 1, a water-absorbing sponge 13 is fixedly connected to the top of the water collection chamber 12, and a plurality of holes connected to the channel 9 are provided at the upper end of the water-absorbing sponge 13 The channel 21 has an upper end as an inlet, and an outlet of the channel 21 is located at the lower end of the water-absorbing sponge 13. An exhaust pipe 14 located at the lower side of the water-absorbing sponge 13 is fixedly connected in the water collecting chamber 12. Under the action of the atomizing nozzle 10, the atomizing nozzle 10 contacts with the exhaust gas and absorbs the cuprous cyanide. Under the action of the atomizing nozzle 10, the atomizing nozzle 10 wets the water-absorbing sponge 13. At the same time, the exhaust gas flows through the channel 21 in the water-absorbing sponge 13 again, is absorbed and processed again, and is finally discharged through the outlet, while the collected waste water is retained in the water collecting chamber 12.

[0030] like Figure 1~Figure 5 The cuprous cyanide tail gas absorption device shown in a specific embodiment is that the lower end of the primary filter chamber 2 is fixedly connected to a discharge chamber 22, a tension spring 23 is fixedly connected inside the discharge chamber 22, and the lower end of the tension spring 23 is fixedly connected to a conical block 24, and the conical block 24 can slide in the discharge chamber 22. After a certain weight of waste residue is collected, the conical block 24 pulls the tension spring 23, and the collected waste residue is discharged through the discharge chamber 22.

[0031] The working principle of the device is as follows: when the device is in use, the driving motor 5 drives the driving gear 6 to rotate, the driving gear 6 drives the driven gear 7 to rotate, the driven gear 7 drives the rotating frame 4 to rotate, and when the rotating frame 4 rotates, it drives the rotating ring 19 to rotate, and when the rotating protrusion 20 on the rotating ring 19 contacts the fixed protrusion 18 on the fixed ring 17, the filter cavity 3 is driven to move upward, and thereafter, when the rotating protrusion 20 contacts any fixed protrusion 18, the filter cavity 3 is driven to move upward once, so that The filter cavity 3 vibrates, thereby vibrating and removing the waste residue on the filter cavity 3 that is inconvenient to clean. When the exhaust gas passes through the channel 9, under the action of the atomizing nozzle 10, the atomizing nozzle 10 contacts the exhaust gas and absorbs the cuprous cyanide. Under the action of the atomizing nozzle 10, the atomizing nozzle 10 wets the absorbent sponge 13. At the same time, the exhaust gas flows through the pores 21 in the absorbent sponge 13 again, is absorbed and processed again, and is finally discharged through the outlet, and the collected waste water is retained in the water collecting chamber 12.

[0032] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A cuprous cyanide tail gas absorption device, comprising a fixed chamber (1), characterized in that: The fixed cavity (1) is provided with a primary filter cavity (2), the primary filter cavity (2) is provided with a filter cavity (3) that can move up and down, the fixed cavity (1) is provided with a rotatable rotating frame (4), the fixed cavity (1) is provided with a driving motor (5), the output end of the driving motor (5) is provided with a driving gear (6), the upper end of the rotating frame (4) is provided with a driven gear (7) that meshes with the driving gear (6), and the rotating frame (4) is provided with a plurality of cleaning scrapers that can clean the side wall of the filter cavity (3). (8), a channel (9) is provided between the fixed chamber (1) and the primary filter chamber (2), an atomizing nozzle (10) is provided at the top of the fixed chamber (1) for spraying an absorbent toward the channel (9), a liquid storage chamber (11) is provided on the fixed chamber (1) and is connected to the atomizing nozzle (10), a water collecting chamber (12) is provided at the lower end of the fixed chamber (1), a water absorbing sponge (13) is provided at the top of the water collecting chamber (12), and an exhaust pipe (14) is provided in the water collecting chamber (12) and is located at the lower side of the water absorbing sponge (13).

2. The cuprous cyanide tail gas absorption device according to claim 1, characterized in that: An air intake pipe (15) is arranged in the middle of the fixed cavity (1), a compression spring (16) is arranged on the air intake pipe (15), the lower end of the compression spring (16) is fixedly connected to the filter cavity (3), and the filter cavity (3) and the air intake can slide relative to each other.

3. The cuprous cyanide tail gas absorption device according to claim 1, characterized in that: A fixing ring (17) is provided at the lower end of the filter cavity (3), and a plurality of fixing protrusions (18) are provided on the lower end surface of the fixing ring (17). A rotating ring (19) corresponding to the fixing ring (17) is provided at the lower end of the rotating frame (4), and a rotating protrusion (20) that can slide on the fixing ring (17) is provided on the upper end surface of the rotating ring (19).

4. The cuprous cyanide tail gas absorption device according to claim 1, characterized in that: The upper end of the water-absorbing sponge (13) is provided with a plurality of channels (21) connected to the channel (9); the upper end of the channel (21) is provided with an inlet, and the outlet of the channel (21) is located at the lower end of the water-absorbing sponge (13).

5. The cuprous cyanide tail gas absorption device according to claim 1, characterized in that: A discharge cavity (22) is provided at the lower end of the primary filter cavity (2), a tension spring (23) is provided in the discharge cavity (22), a conical block (24) is provided at the lower end of the tension spring (23), and the conical block (24) can slide in the discharge cavity (22).

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