Rotary dust discharging device of bag-type dust collector
By introducing a rotating ash discharge device into the bag dust collector, and using an electric rotary discharge valve and pneumatic vibrator, the problems of ash accumulation and smoke entering the ash outlet are solved, the equipment operation time is extended, the maintenance cost is reduced, and the equipment operation stability and efficiency are improved.
Patent Information
- Application Number
- CN202422324883.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-24
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-09-24
AI Technical Summary
When the existing bag dust collectors are incinerated with waste liquid, they are prone to form accumulation and accumulation of dust bridges at the ash outlet, resulting in excessive force when opening and closing of the pneumatic flip valve, which is easy to break, has a high maintenance frequency, and a large amount of smoke entering, affecting the stability of the equipment operation.
Rotary ash removal device is adopted, including an electric rotary discharge valve and a pneumatic vibrator, which combines continuous operation and intermittent vibration to reduce dust accumulation, enhance dust removal effect, and add an electric rotary valve at the U-shaped bend to reduce smoke and dust entry.
It effectively solves the problems of dust accumulation and smoke entering, extends the equipment operation time, reduces maintenance costs, and improves the operating stability and efficiency of the equipment.
Smart Images
Figure CN223112585U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of bag dust collectors, in particular to a rotary dust unloading device for bag dust collectors. Background Art
[0002] Bag dust collector is a dry dust filtering device, which is suitable for capturing fine, dry, non-fibrous dust. The filter bag is made of textile filter cloth or non-textile felt, and uses the filtering effect of fiber fabric to filter the dust-containing gas. When the dust-containing gas enters the bag dust collector, the large particles and high specific gravity dust settle down due to gravity and fall into the ash hopper. When the gas containing finer dust passes through the filter material, the dust is retained, so that the gas is purified.
[0003] A rotating ash unloading device is added at the bottom of the bag filter of the incinerator and at the U-shaped bend of the flue air inlet section of the bag filter. Originally, a pneumatic flap valve was used at the bottom of the bag filter, and the PLC control cabinet was used to set the time interval to control the switching frequency of the flap valve. However, when the incinerator of this device is used to incinerate waste liquid, the waste liquid contains a large amount of ash and the weight of the fly ash is light, which is easy to form accumulation and ash bridging at the ash outlet. Since the PLC control cabinet has a time interval setting, when the system has a large ash output, the amount of ash accumulated at the conical bottom of the dust collector is large. When the pneumatic flap valve is switched, the welding point between the connecting rod and the flap is easily subjected to excessive force and caused to break, and the maintenance frequency during operation is high. Utility Model Content
[0004] The purpose of the utility model is to solve the above problems and to propose a rotary dust discharging device for a bag dust collector.
[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0006] A rotary dust unloading device for a bag dust collector comprises an air inlet pipe, the bottom of the air inlet pipe is connected to a U-shaped tube, one end of the U-shaped tube is connected to a bag dust collector for dust removal, the bottom of the bag dust collector is connected to a conical bucket for discharging dust, the bottom of the bag dust collector is fixedly connected to a support frame for supporting the conical bucket, the bottom of the conical bucket is connected to an electric rotary discharge valve 1 for scraping off accumulated dust, the bottom of the U-shaped tube is connected to an electric rotary discharge valve 2 for reducing accumulated dust, and the outer wall of the conical bucket is fixedly connected to a pneumatic vibrator for preventing dust accumulation at the ash outlet of the conical bucket.
[0007] Preferably, the number of the electric rotary discharge valves 2 is set to two, and the two electric rotary discharge valves 2 are respectively connected to the two U-shaped bends of the U-shaped tube.
[0008] Preferably, the number of the pneumatic vibrators is set to two, and the two pneumatic vibrators are arranged in mirror symmetry with the conical hopper as the center.
[0009] In summary, due to the adoption of the above technical solutions, the beneficial effects of the present utility model are as follows:
[0010] In this application, the pneumatic flap valve is replaced with a rotary feeder valve. The rotary feeder valve operates continuously, and under negative pressure conditions, the accumulated ash can also be scraped off by the star-shaped scraper, solving the problems of difficult feeding and ash accumulation, sticking, and jamming. At the same time, one pneumatic vibrator is added to each side of the inclined plate of the conical hopper. By using the intermittent vibration process, the ash accumulation on the internal support plate and the ash outlet is reduced. At the vertical channel of the U-shaped bend in the flue gas inlet section of the bag filter, one electric rotary feeder valve is added to each, which reduces the amount of soot entering the bag filter to a certain extent, solves the problem of ash accumulation at the U-shaped bend, and at the same time increases the operation duration of the bag filter and extends the replacement interval of the filter bags, that is, it increases the operation time and saves the operation and maintenance costs of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 shows the overall structural schematic diagram provided by the embodiment of the present utility model;
[0012] Figure 2 shows the sectional view of the bag filter structure provided by the embodiment of the present utility model.
[0013] Legend:
[0014] 1. Inlet pipe; 2. U-shaped pipe; 3. Bag filter; 4. Support frame; 5. Conical hopper; 6. Electric rotary feeder valve 1; 7. Electric rotary feeder valve 2; 8. Pneumatic vibrator. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0015] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0016] Please refer to Figure 1-2 , the present utility model provides a technical solution:
[0017] Embodiment 1:
[0018] As Figure 1-2As shown in the figure, a rotary ash discharging device for a bag filter includes an air inlet pipe 1. A U-shaped pipe 2 is connected to the bottom of the air inlet pipe 1. One end of the U-shaped pipe 2 is connected to a bag filter 3 for dust removal. The bottom of the bag filter 3 is connected to a conical hopper 5 for discharging dust. A support frame 4 for supporting the conical hopper 5 is fixedly connected to the bottom of the bag filter 3. An electric rotary feeding valve 1 6 for scraping accumulated ash is connected to the bottom of the conical hopper 5. The number of conical hoppers 5 is set to be multiple, and the multiple conical hoppers 5 are linearly arranged at equal intervals in sequence. The number of electric rotary feeding valves 1 6 is the same as the number of conical hoppers 5. An electric rotary feeding valve 2 7 for reducing accumulated ash is connected to the bottom of the U-shaped pipe 2. An air-operated vibrator 8 for preventing ash accumulation at the ash outlet of the conical hopper 5 is fixedly connected to the outer wall of the conical hopper 5.
[0019] Embodiment 2:
[0020] It is basically the same as the technical solution of Embodiment 1, except that, as Figure 1 and Figure 2 shown, the number of electric rotary feeding valves 2 7 is set to be two, and the two electric rotary feeding valves 2 7 are respectively connected and arranged at the two U-shaped bends of the U-shaped pipe 2.
[0021] Embodiment 3:
[0022] It is basically the same as the technical solution of Embodiment 1, except that, as Figure 1 shown, the number of air-operated vibrators 8 is set to be two, and the two air-operated vibrators 8 are symmetrically arranged in a mirror image with the conical hopper 5 as the center.
[0023] In summary, when the rotary ash discharging device of the bag filter provided in this embodiment is in use, the staff opens the electric rotary feeding valve 2 7, and the electric rotary feeding valve 2 7 will discharge the dust at the two bent channels of the U-shaped pipe 2. This can not only reduce the amount of soot entering the bag filter 3 to a certain extent, but also solve the problem of ash accumulation at the U-shaped bend. Then the staff opens the electric rotary feeding valve 1 6. The electric rotary feeding valve 1 6 can operate continuously, and under negative pressure conditions, the accumulated ash can also be scraped off by the scraper, solving the problems of difficult feeding and ash accumulation sticking and jamming. At the same time, the staff opens the air-operated vibrator 8, and uses the intermittent vibration of the air-operated vibrator 8 to reduce the ash accumulation inside the conical hopper 5 and at the ash outlet of the conical hopper 5. This can increase the operation duration of the bag filter 3 and extend the replacement duration of the bag, that is, increase the operation time and save the operation and maintenance cost of the equipment.
[0024] The above description of the embodiments enables those skilled in the art to implement or use the present utility model. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present utility model. Therefore, the present utility model will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A rotary ash discharging device for a bag filter, comprising an air inlet pipe (1), characterized in that, The bottom of the intake pipe (1) is connected with a U-shaped pipe (2). One end of the U-shaped pipe (2) is connected with a bag filter (3) for dust removal. The bottom of the bag filter (3) is connected with a conical hopper (5) for discharging dust. The bottom of the bag filter (3) is fixedly connected with a support frame (4) for supporting the conical hopper (5). The bottom of the conical hopper (5) is connected with an electric rotary feeder one (6) for scraping accumulated ash. The bottom of the U-shaped pipe (2) is connected with an electric rotary feeder two (7) for reducing accumulated ash. The outer wall of the conical hopper (5) is fixedly connected with a pneumatic vibrator (8) for preventing ash accumulation at the ash outlet of the conical hopper (5).
2. The rotary ash discharging device of a bag filter according to claim 1, characterized in that, The number of the electric rotary feeder two (7) is set to two, and the two electric rotary feeder two (7) are respectively connected and arranged at the two U-shaped bends of the U-shaped pipe (2).
3. The rotary ash discharging device of a bag filter according to claim 1, characterized in that, The number of the pneumatic vibrator (8) is set to two, and the two pneumatic vibrator (8) are arranged in mirror symmetry with the conical hopper (5) as the center.