Drum screen capable of automatically cleaning screen
By installing components such as air jet nozzles and electromagnetic pulse valves on the drum screen, high-pressure airflow is used to automatically clean the screen holes, solving the problem of easy screen clogging, realizing automatic screen cleaning, and improving production efficiency.
Patent Information
- Application Number
- CN202423184487.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2034-12-24
AI Technical Summary
When processing waste with high moisture content, the existing rotary drum screen is prone to clogging of the screen holes, which leads to a decrease in screening efficiency and requires manual shutdown for cleaning, thus affecting production efficiency.
The screen cleaning device, consisting of a jet nozzle, electromagnetic pulse valve, air supply pipe, air tank and air pump, uses high-pressure airflow to automatically clean the screen holes. The electromagnetic pulse valve controls the airflow to impact the screen holes, thus achieving automatic screen cleaning.
It enables automatic and timely cleaning of screen holes without the need for machine shutdown and manual operation, reducing cleaning costs and improving production efficiency.
Smart Images
Figure CN223698388U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of garbage treatment sieve, especially relates to a drum sieve of automatic screen cleaning. BACKGROUND
[0002] In the garbage screening treatment process, the garbage composition is complex, and the soil and gravel contained in the garbage with high water content can easily block the screen holes on the screen plate, affect the screening effect of the drum sieve and reduce the screening production efficiency. In order to ensure the screening effect and production efficiency, the screen holes of the drum sieve need to be cleaned in time. At present, the screen holes of most drum sieves are cleaned by manual operation, and the cleaning process needs to stop, which is time-consuming and laborious and affects the production efficiency. SUMMARY
[0003] The utility model aims at overcoming the above-mentioned defects, and provides a drum sieve of automatic screen cleaning, which can automatically and timely clean the screen holes of the drum sieve without stopping and manual operation.
[0004] The utility model discloses a drum sieve of automatic screen cleaning, including the drum sieve, the drum sieve is provided with material loading port and material outlet, the drum sieve is composed of the drum sieve plate and the drum sieve shell that is externally equipped, the drum sieve plate is surrounded by a plurality of screen plates with different hole diameters and is in the shape of a drum, and characterized by further including a screen cleaning device, the screen cleaning device includes a gas jet nozzle, an electromagnetic pulse valve, a gas pipe, a gas pocket, a gas pipe and a gas pump, a gas nozzle frame and a gas pocket frame are fixed on the drum sieve shell, the gas nozzle frame is installed on the gas nozzle above the drum sieve shell, a gas inlet is formed on the drum sieve shell opposite to the gas outlet of the gas jet nozzle, the gas jet nozzle is inserted into the gas inlet, the gas outlet of the gas jet nozzle faces the screen hole of the drum sieve plate, one end of the electromagnetic pulse valve is connected with the gas jet nozzle, and the other end is connected with the gas pipe, the gas pipe is connected with the gas pocket, the gas pocket is fixed on the gas pocket frame, one end of the gas pipe is connected with the gas pocket, and the other end is connected with the gas pump or the existing compressed air source, thereby forming continuous gas supply to the gas pocket.
[0005] The utility model has the advantages of the following:
[0006] 1, the device can automatically, timely clean the screen hole of the drum sieve that is blocked, does not need to stop, does not need manual operation, reduces the cleaning cost and improves the production efficiency.
[0007] 2, utilize principle to be appropriate, simple structure, easy operation, good effect. BRIEF DESCRIPTION OF DRAWINGS
[0008] Figure 1 It is the structure schematic diagram of the utility model.
[0009] Figure 2 It is Figure 1 the side sectional view structure schematic diagram.
[0010] Figure 3 This is a magnified view of a portion of the image.
[0011] Figure 4 This is a magnified view of a portion of the jet nozzle.
[0012] in:
[0013] 1-Drum screen plate, 2-Drum screen shell, 3-Air nozzle, 4-Solenoid pulse valve, 5-Air supply pipe, 6-Air bag, 7-Air bag frame, 8-Air pipe, 9-Air pump, 10-Air nozzle frame. Detailed Implementation
[0014] Example: As shown in the figure, an automatic cleaning drum screen includes a drum screen and a cleaning device. The drum screen is inclined, with a material inlet at the high end and a large / heavy material outlet at the low end. The drum screen consists of a drum screen plate 1 and an external drum screen housing 2. The drum screen plate 1 is formed by several screen plates with different apertures arranged in a drum shape. The cleaning device includes an air nozzle 3, an electromagnetic pulse valve 4, an air supply pipe 5, an air tank 6, an air tank frame 7, an air pipe 8, and an air pump 9. An air nozzle frame 10 is fixed on the drum screen housing 2. Multiple air nozzles 3 are welded along the axial direction of the drum on the air nozzle frame 10 above the body 2. An air inlet is opened on the drum screen housing 2 opposite to the air nozzle 3. The air nozzle 3 is inserted into the air inlet, and its air outlet faces the screen hole of the drum screen plate 1. One end of the electromagnetic pulse valve 4 is connected to the air nozzle 3, and the other end is connected to the air supply pipe 5. The air supply pipe 5 is connected to the air tank 6. The air tank 6 is fixed on the air tank frame 7 on the drum screen housing 2. One end of the air pipe 8 is connected to the air tank 6, and the other end is connected to the air pump 9 or an existing compressed air source to form a continuous air supply to the air tank 6.
[0015] The working principle of this device is as follows: the electromagnetic pulse valve 4 intermittently supplies high-pressure gas to the jet nozzle 3 at set times. As the high-pressure gas passes through the jet nozzle 3, the airflow speed increases and the kinetic energy increases. The accelerated airflow impacts the blockages on the screen holes, causing them to fall off, thereby achieving the purpose of automatically cleaning the screen holes.
[0016] The working process of this device is as follows: Air pump 9 or other compressed air source supplies air to air tank 6 through air pipe 8. Air tank 6 stores compressed air and supplies it to electromagnetic pulse valve 4 through air delivery pipe 5. Electromagnetic pulse valve 4 is controlled by a control element in a remote control cabinet. When electromagnetic pulse valve 4 opens to supply air to jet nozzle 3, the airflow speed increases as the nozzle cross-section contracts, increasing the kinetic energy of the airflow. The accelerated airflow rushes towards the screen holes on the drum screen plate 1. The mud and other debris stuck in the screen holes are detached and fall off under the impact of the high-speed airflow, thus achieving the purpose of automatically cleaning the screen holes with airflow.
Claims
1. A self-cleaning drum screen, comprising a drum screen provided with a material feeding port and a material outlet, the drum screen being composed of a drum screen plate and a drum screen shell externally sleeved with the drum screen plate, the drum screen plate being surrounded in a drum shape by a plurality of screen plates with different hole diameters, characterized in that: Also include the cleaning screen device, the cleaning screen device includes air jet, electromagnetic pulse valve, gas pipe, gas bag, gas pipe and air pump, the air jet frame and the gas bag frame are fixed on the cylinder screen shell, the air jet is installed on the air jet frame above the cylinder screen shell, the air inlet is opened on the cylinder screen shell opposite to the air jet of the air jet, the air jet is inserted into the air inlet, the air jet opening faces the screen hole of the cylinder screen plate, one end of the electromagnetic pulse valve is connected with the air jet, the other end is connected with the gas pipe, the gas pipe is connected with the gas bag, the gas bag is fixed on the gas bag frame, one end of the gas pipe is connected with the gas bag, the other end is connected with the air pump or the existing compressed air source, and the continuous gas supply to the gas bag is formed.