Pulse groove cleaning type rotary ash discharging device
By introducing pulse cleaning technology into the rotary ash discharger, and using compressed air and sensing devices to control the jet nozzles, timed cleaning of the ash discharge trough is achieved, solving the problem of ash sticking in traditional ash dischargers and improving the continuous ash discharge capacity and efficiency of the equipment.
Patent Information
- Application Number
- CN202520931533.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-13
- Publication Date
- 2026-01-20
- Estimated Expiration
- 2035-05-13
AI Technical Summary
Traditional rotary dust dischargers are prone to dust accumulation in the discharge trough when handling ultrafine, ultralight, and easily adherent metallurgical dust, leading to difficulties in unloading. Existing improvement methods have not completely solved this problem.
A pulse-cleaning rotary ash discharger is adopted, which uses compressed air to perform pulse cleaning of the ash discharge trough. The opening and closing of the blow holes are controlled by a star wheel induction plate and an infrared induction probe to achieve timed cleaning.
It completely solved the problem of ash sticking in the ash discharge trough, ensured continuous ash discharge, improved equipment working efficiency, and reduced losses by controlling air pressure.
Smart Images
Figure CN223813019U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to metallurgical flue dust conveying equipment technical field, namely a kind of pulse tank cleaning type rotary unloader. BACKGROUND
[0002] In the past metallurgical production process, the dust removal treatment of kiln flue gas will generate a large amount of dust in the dust collector, according to its smelting variety classification, many dusts have the characteristics of superfine, super-light, extremely easy to stick to pipe wall, for example, silicon-manganese iron alloy smelting electric furnace flue dust, dust bulk density is about 0.35t / m³, dust humidity is about 0.26%, especially dust has great stickiness in 40-120℃ interval, causing dust sticking in the unloading chute of traditional rotary unloader during the dust removal process of dust collector, forming hardening, and seriously appearing unloading star wheel rolling material state, unable to unload normally.
[0003] For this, many unloader manufacturers solve the problem by polishing the unloading chute of unloader or spraying Teflon on the surface of unloading chute, and test proves that although the above method can greatly reduce the dust sticking problem of unloading chute, with the increase of unloading time, it is found that there is still dust sticking problem in unloading chute, which cannot guarantee to completely solve the root problem.
[0004] Therefore, a reliable dust unloading device for metallurgical flue dust sticking dust needs to be developed, that is, on the basis of the structure of traditional rotary unloader, how to completely prevent dust sticking problem of unloading chute is developed. INVENTION CONTENTS
[0005] The utility model aims at the above-mentioned insufficient and provides a kind of pulse tank cleaning type rotary unloader, in the unloading process of rotary unloader, the unloading chute is completely cleaned by compressed air, to prevent material sticking in unloading chute.
[0006] The technical solution of the utility model is: a kind of pulse tank cleaning type rotary unloader, including the shell with upper feed inlet, there is star wheel main shaft through in the middle part of shell on the shell, there is star wheel on the star wheel main shaft in shell, star wheel is formed after the radiation welding of multiple blades and main shaft, and unloading chute is formed between each blade. Each unloading chute end face is equipped with spray hole, there is shell spray hole corresponding with rotary spray hole on the shell, shell spray hole is connected with pulse compressed air pipeline, there is pulse valve on pulse compressed air pipeline;Star wheel induction disc is installed on the outer end position of main shaft, star wheel induction disc is uniformly distributed with the induction hole corresponding with the position of unloading chute, infrared induction probe is installed on the main shaft bearing seat close to star wheel induction disc, when infrared induction probe detects star wheel induction disc induction hole, pulse valve is started through induction signal.
[0007] Multiple blades are a blade;There is a corresponding unloading chute.
[0008] The advantages of this invention are: 1. This equipment can completely solve the problem of ash adhesion in the ash discharge trough of the rotary ash discharger, ensuring continuous ash discharge and improving equipment efficiency. 2. This equipment can control the ash cleaning effect by adjusting the compressed air pressure, reducing air loss. 3. This equipment can achieve timed ash cleaning control of the ash discharge trough through a control program.
[0009] The embodiments of this utility model will now be described in further detail with reference to the accompanying drawings. Attached Figure Description
[0010] Figure 1 This is a simplified structural diagram of the present invention.
[0011] Figure 2 yes Figure 1 A simplified diagram of the left-side view structure.
[0012] The components in the diagram are named as follows: housing 1, star wheel 2, ash discharge trough 3, blow hole 4, pulse valve 5, housing blow hole 6, star wheel spindle 7, infrared sensor probe 8, star wheel induction disk 9, spindle bearing seat 10, feed port 11, and discharge port 12. Detailed Implementation
[0013] See Figure 1 , 2 A pulse-type rotary ash discharger includes a housing 1 with an upper feed inlet 11. A star wheel main shaft 7 runs through the middle of the housing 1. Inside the housing, a star wheel 2 is mounted on the main shaft. The star wheel 2 is formed by radially welding multiple blades to the main shaft 7, creating ash discharge grooves 3 between the blades. The star wheel 2 has eight blades welded to the main shaft 7 to form eight ash discharge grooves 3. Eight end-face blow holes 4 are respectively provided on the end face of each ash discharge groove. During pulse-jet cleaning, these holes rotate in correspondence with the blow holes 6 on the housing, thus creating a pulse-jet cleaning channel for the ash discharge grooves 3. The inner end face of the rotary ash discharger housing 1 and the rotating end face of the star wheel 2 are sealed with a micro-gap rotary seal to prevent leakage of large amounts of compressed air. Simultaneously, the rotary ash discharger housing 1 is connected to a pulse compressed air pipeline via the housing blow holes 6. The compressed air is controlled by a pulse valve 5 to achieve the function of pulse-jet cleaning of the ash discharge grooves. To achieve the interlock between the blowing position and the pulse valve action, a star wheel induction disk 9 is installed on the star wheel spindle 7. Eight induction holes are evenly distributed on the disk, corresponding to the position of the ash discharge trough 3. When the infrared induction probe 8 installed on the spindle bearing seat 10 detects the induction hole of the star wheel induction disk 9, the pulse valve 5 is activated through the induction signal to perform pulse cleaning.
[0014] Working principle: the dust-removing powder enters the rotating unloading chute 3 from the upper feeding port 11 of the rotating unloading device, and with the rotation of the star wheel 2, the unloading chute 3 with dust rotates 180 degrees (the lowest end position), the pulse compressed air injection hole installed on the corresponding position of the shell 1 of the rotating unloading device is pulsed and sprayed, the shell blowing hole 6 is communicated with the unloading chute end face blowing hole 4 at the time of spraying, the compressed air instantaneously removes the powder adhered in the unloading chute 3, realizes the cycle of the star wheel rotating and dust cleaning, thereby ensuring that the star wheel is always in a cleaning state, and completely solves the problem of unloading chute sticking. In order to ensure the positioning communication of the shell blowing hole 6 and the unloading chute end face blowing hole 4 at the time of spraying, the star wheel induction disc 9 corresponding to the unloading chute end face blowing hole is arranged on the outer side of the star wheel main shaft 7 of the rotating unloading device shell 1, and the recognition signal of the star type induction disc 9 is recognized through the infrared induction probe to control the compressed air spraying action.
[0015] The above description is only a specific embodiment of the present application, and various examples do not constitute a limitation on the essential content of the present application.
Claims
1. A pulse-type rotary ash discharger, comprising a housing (1) with an upper feed inlet (11), a star wheel main shaft (7) passing through the middle of the housing (1), a star wheel (2) on the star wheel main shaft inside the housing, the star wheel (2) being formed by radial welding of multiple blades to the main shaft (7), and an ash discharge groove (3) being formed between the blades, characterized in that... Each ash discharging groove (3) is provided with a blowing hole (4) at the end face, and the shell is provided with a shell blowing hole (6) corresponding to the rotating blowing hole (4), the shell blowing hole (6) is connected with a pulse compressed air pipeline, and the pulse compressed air pipeline is provided with a pulse valve (5); a star wheel induction disc (9) is installed at the outer end position of the main shaft (7), the star wheel induction disc (9) is uniformly provided with eight induction holes corresponding to the positions of the ash discharging grooves (3), an infrared induction probe (8) is installed on the main shaft bearing seat (10) close to the star wheel induction disc (9), and when the infrared induction probe (8) detects the induction hole of the star wheel induction disc (9), the pulse valve (5) is started through an induction signal.
2. A pulse decanting rotary ash discharger according to claim 1, characterized in that The plurality of blades are eight blades; and there are eight ash discharging grooves (3).