A gas drying system
By adding a combination of dehumidifying powder and pulse bag filter unit into the air inlet pipe, the problems of clogging and inconvenient maintenance of bag filter dust collectors in the treatment of wet gas are solved, achieving efficient drying and convenient maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGXI COPPER (QINGYUAN) CO LTD
- Filing Date
- 2025-06-09
- Publication Date
- 2026-06-16
Smart Images

Figure CN224358222U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of gas drying technology, specifically a gas drying system. Background Technology
[0002] In the production process of copper anode plates, bag filters are required to remove dust from the gas. However, since the gas contains some moisture, the gas used needs to be kept at a certain level of dryness. When the bag filter removes dust from the gas containing moisture for a long time, it will cause the filter bags to become clogged and even shorten their service life. Therefore, drying the gas before passing it through the bag filter can better protect the bag filter.
[0003] In the prior art, utility model patent CN216799079U discloses a dust removal device, particularly an improvement to a bag filter. It provides a pulse-jet bag filter with high inlet gas dryness, preventing condensation on the fiber fabric. It includes a main body and a drying mechanism. The main body has an air inlet and an air outlet, and the drying mechanism is located at the air inlet. Dust-laden gas passes through the drying mechanism into the main body. This dust removal device requires timely maintenance and replacement of the drying mechanism, and replacement necessitates machine shutdown, making operation cumbersome.
[0004] Therefore, the technical problem to be solved in this case is: how to conveniently maintain the equipment under dry gas conditions. Utility Model Content
[0005] To solve the above-mentioned technical problems, this utility model provides a gas drying system. This gas drying system dries the gas by using dehumidifying powder. The gas is initially dried in the inlet pipe and then adsorbed on the surface of the pulse bag filter unit under the action of the powder. This allows the gas about to enter the pulse bag filter unit to be further dried by the dehumidifying powder, which can dry the gas thoroughly, improve the gas drying efficiency, and facilitate the maintenance of the equipment by the staff.
[0006] The technical solution of this utility model is:
[0007] A gas drying system includes an inlet pipe, an exhaust pipe, and a pulse bag filter unit for gas dust removal. The inlet pipe is connected to the inlet end of the pulse bag filter unit, and the exhaust pipe is connected to the outlet end of the pulse bag filter unit. The system also includes a tank located on one side of the pulse bag filter unit, which is connected to the inlet pipe. The tank is equipped with a metering output module for discharging dehumidifying powder into the inlet pipe. The dehumidifying powder located in the inlet pipe enters the pulse bag filter unit together with the gas.
[0008] Preferably, the quantitative output module includes a drive motor, a transmission component, and an output plate. The drive motor is located on one side of the tank. The output end of the drive motor is connected to one end of the transmission component. The other end of the transmission component is provided with a rotating shaft. The rotating shaft passes through the tank and is connected to the output plate. The output plate is located inside the tank and is used to quantitatively output dehumidifying powder into the air inlet pipe.
[0009] Preferably, the output plate body includes a plurality of output plates arranged around a rotation axis, and an output section for outputting dehumidifying powder is provided between two adjacent output plates.
[0010] Preferably, the pulse bag separation unit is a pulse bag dust collector.
[0011] Preferably, the pulse bag filter is provided with a plurality of dust collection bags, and nozzles are respectively provided above the plurality of dust collection bags.
[0012] Preferably, the vertical cross-section of the tank is funnel-shaped.
[0013] Preferably, the tank body is provided with a feeding port for feeding dehumidifying powder.
[0014] One of the above-described technical solutions of this utility model has at least one of the following advantages or beneficial effects:
[0015] This invention uses dehumidifying powder to dry the gas. The gas is initially dried in the inlet pipe, and then adsorbed on the surface of the pulse bag filter unit under the action of the powder. This allows the gas about to enter the pulse bag filter unit to be further dried by the dehumidifying powder, which can dry the gas thoroughly, improve the gas drying efficiency, and facilitate the maintenance of the equipment by the staff. Attached Figure Description
[0016] Fig. 1 This is a perspective view of Embodiment 1 of the present utility model;
[0017] Fig. 2 This is a front view of Embodiment 1 of the present invention;
[0018] Fig. 3 This is a cross-sectional view of Embodiment 1 of the present utility model.
[0019] The reference numerals for each of the attached figures are as follows: 1. Inlet pipe; 2. Exhaust pipe; 3. Pulse bag separator; 4. Tank; 5. Quantitative output module; 31. Dust collector bag; 32. Nozzle; 33. Collection trough; 41. Feeding port; 42. Cover; 51. Drive motor; 52. Transmission component; 53. Output plate; 521. Rotating shaft; 531. Output plate. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] Example 1
[0022] Please see Figs. 1-3 A gas drying system includes an inlet pipe 1, an exhaust pipe 2, and a pulse bag filter unit 3 for gas dust removal. The inlet pipe 1 is connected to the inlet end of the pulse bag filter unit 3, and the exhaust pipe 2 is connected to the outlet end of the pulse bag filter unit 3. The system also includes a tank 4 located on one side of the pulse bag filter unit 3. The tank 4 is connected to the inlet pipe 1, and the tank 4 is provided with a quantitative output module 5 for outputting dehumidifying powder to the inlet pipe 1. The dehumidifying powder located in the inlet pipe 1 enters the pulse bag filter unit 3 together with the gas.
[0023] In practical applications, the gas requiring drying enters the pulse bag filter unit 3 through the inlet pipe 1 for dust removal. It should be noted that the inlet pipe 1 is connected to an external air pump, which transports the gas to the pulse bag filter unit 3. The gas is transported from the inlet pipe 1 to the pulse bag filter unit 3 using hot air. During this process, the dehumidifying powder in the tank 4 enters the pulse bag filter unit 3 along with the gas through the inlet pipe 1. It should be noted that the dehumidifying powder in this embodiment is lime powder. The gas and the dehumidifying powder come into contact within the inlet pipe 1, resulting in preliminary drying. The gas and dehumidifying powder then enter the pulse bag filter unit 3 together, and the dehumidifying powder can adhere to the surface of the pulse bag filter unit 3. This allows the gas to come into contact with the dehumidifying powder for drying during dust removal, ensuring that subsequent gas is dried by the dehumidifying powder, thus improving the degree of gas drying. Furthermore, since the gas is dehumidified using the dehumidifying powder, equipment maintenance is convenient.
[0024] Preferably, the quantitative output module 5 includes a drive motor 51, a transmission component 52, and an output plate 53. The drive motor 51 is located on one side of the tank 4. The output end of the drive motor 51 is connected to one end of the transmission component 52. The other end of the transmission component 52 is provided with a rotating shaft 521. The rotating shaft 521 passes through the tank 4 and is connected to the output plate 53. The output plate 53 is located inside the tank 4 and is used to quantitatively output the dehumidifying powder into the air inlet pipe 1.
[0025] In the above design, the drive motor 51 drives the transmission component 52 to rotate, and transmits the rotation to the rotating shaft 521 through the transmission component 52. The rotating shaft 521 then drives the output plate 53 to rotate, thereby realizing the quantitative output of dehumidifying powder. In this embodiment, the transmission component 52 is a synchronous belt structure, or it can be a sprocket structure.
[0026] Preferably, the output plate body 53 includes a plurality of output plates 531 arranged around the rotation axis 521, and an output section for outputting dehumidifying powder is provided between two adjacent output plates 531.
[0027] With the above design, when the rotating shaft 521 rotates, it will drive multiple output plates 531 to rotate around the axis of the rotating shaft 521. Whenever an output plate 531 rotates at a certain angle, the dehumidifying powder located in the output section can be output into the air inlet pipe 1. For the specific structure, please refer to the feeding section of Chinese patent document (CN221342223U).
[0028] Preferably, the pulse bag filter is provided with a plurality of dust collection bags 31, and nozzles 32 are respectively provided above the plurality of dust collection bags 31, and a collection trough 33 is provided below the pulse bag filter.
[0029] In this embodiment, there are 6 dust collector bags 31. Specifically, every ten minutes, a pulse jet cleaning unit uses nozzle 32 to backflush the corresponding dust collector bag 31, shaking the dehumidified powder into the collection tank 33. Alternatively, the powder can be directly discharged to an external collection device. Simultaneously, the quantitative output module 5 inputs dehumidified powder to replenish the powder. In other words, when the dehumidified powder adsorbed by a dust collector bag 31 is shaken off by backflushing, new dehumidified powder is added, thereby improving the dryness of the gas. This ensures that the baghouse dust collector continuously has dust collector bags 31 adsorbing dehumidified powder to dry the gas. It should be noted that the nozzle 32 achieves backflushing through a pulse jet cleaning device, as detailed in Chinese patent document (CN104707411A). The backflushing time is 0.1 to 0.15 seconds. Through backflushing, the quicklime formed from the water-absorbing lime powder is carried away from the collection tank, facilitating equipment maintenance.
[0030] Preferably, the vertical cross-section of the tank 4 is funnel-shaped.
[0031] In the above design, the funnel-shaped tank 4 facilitates the accumulation of dehumidifying powder in the air intake pipe 1, thereby making it easier to output the dehumidifying powder into the air intake pipe 1.
[0032] Preferably, the tank body 4 is provided with a feeding port 41 for feeding dehumidifying powder, and the feeding port 41 is provided with a detachable cover 42.
[0033] With the above design, the feeding port 41 allows workers to easily put the dehumidifying powder into the tank 4, and the cover 42 can also prevent the dehumidifying powder from escaping.
[0034] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.
Claims
1. A gas drying system, comprising an inlet pipe, an outlet pipe, and a pulse-jet bag filter unit for gas dust removal, wherein the inlet pipe is connected to the inlet end of the pulse-jet bag filter unit, and the outlet pipe is connected to the outlet end of the pulse-jet bag filter unit, characterized in that, It also includes a tank located on one side of the pulse bag separator unit. The tank is connected to the air inlet pipe. The tank is equipped with a quantitative output module for outputting dehumidifying powder to the air inlet pipe. The dehumidifying powder located in the air inlet pipe enters the pulse bag separator unit together with the gas.
2. The gas drying system according to claim 1, characterized in that, The quantitative output module includes a drive motor, a transmission component, and an output plate. The drive motor is located on one side of the tank. The output end of the drive motor is connected to one end of the transmission component. The other end of the transmission component is provided with a rotating shaft. The rotating shaft passes through the tank and is connected to the output plate. The output plate is located inside the tank and is used to quantitatively output dehumidifying powder into the air inlet pipe.
3. The gas drying system according to claim 2, characterized in that, The output plate body includes multiple output plates arranged around the rotation axis, and an output section for outputting dehumidifying powder is provided between two adjacent output plates.
4. The gas drying system according to claim 1, characterized in that, The pulse bag separation unit is a pulse bag dust collector.
5. A gas drying system according to claim 4, characterized in that, The pulse bag filter is equipped with multiple dust collection bags, and nozzles are respectively installed above the multiple dust collection bags.
6. A gas drying system according to claim 1, characterized in that, The vertical cross-section of the tank is funnel-shaped.
7. A gas drying system according to claim 1, characterized in that, The tank is equipped with a feeding port for adding dehumidifying powder.