Sand-stone separating screen frame cleaning device
By designing a sand and gravel separation screen frame cleaning device including air duct, air guide plate and pressure plate, the problem of clogging of the screen frame of the sand and gravel separator is solved, and the screening efficiency and service life of the equipment are improved.
Patent Information
- Application Number
- CN202421064351.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-16
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2034-05-16
AI Technical Summary
The screen frame of the sand and gravel separator is easily blocked by sand and gravel blocks during the separation process, which affects the screening efficiency.
A sand and gravel separation screen frame cleaning device is designed, including a rotary mounted drum screen frame, a fixed installed air duct and fan, a air guide plate and a hinged press plate. The air blown out of the air duct concentratedly towards the screen hole of the drum screen frame, and the air guide plate and the pressure plate cooperate to promote the cleaning of blocked stones.
Effectively clean up the clogs in the drum screen frame, improve the screening efficiency of the sand and gravel separator, and extend the service life of the screen frame.
Smart Images
Figure CN222659187U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of sand and gravel separation, in particular to a sand and gravel separation screen frame cleaning device. Background Art
[0002] Construction waste refers to the waste generated during the construction, reconstruction, expansion or demolition of buildings, among which concrete waste is the most common type of construction waste. Usually, the recycled concrete must first be separated from the stone and sand by a sand and gravel separator.
[0003] The sand and gravel separator separates large and small particles through a rotating roller screen frame. During the separation process, the screen holes on the screen frame are easily blocked by sand and gravel, thus affecting the screening efficiency. Utility Model Content
[0004] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a sand and gravel separation screen frame cleaning device to solve the current pain points in this field.
[0005] The above technical objectives of the utility model are achieved through the following technical solutions:
[0006] A sand and gravel separation screen frame cleaning device comprises a frame, in which a drum screen frame is rotatably installed, an air duct is fixedly installed in the frame above the drum screen frame, the air duct is connected to a fan fixedly installed on the outside of the frame, an air outlet of the air duct is downwardly close to the drum screen frame, and air guide plates are arranged on both sides of the air outlet of the air duct.
[0007] A pressure plate is hinged at the bottom end of the air guide plate, a torsion spring is arranged at the hinge of the pressure plate, and one end of the pressure plate is tilted close to one end of the drum screen frame.
[0008] To sum up, the beneficial effects of the utility model compared with the prior art are as follows: during the rotation of the drum screen frame, the top is located below the air duct, and the wind blown out of the air duct is concentratedly blown toward the sieve holes of the drum screen frame under the restriction of the wind guide plate, so that the stones that cause blockage in the sieve holes can be blown out; in addition, the pressure plate hinged at the lower hem of the wind guide plate is tilted toward the direction of the rotation of the drum screen frame, and the protruding parts of the stones in the sieve holes of the drum screen frame can be pushed out when they contact the pressure plate, which is beneficial to increase the cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] By reading the detailed description below with reference to the accompanying drawings, the above and other objects, features and advantages of the exemplary embodiments of the present invention will become readily understood. In the accompanying drawings, several embodiments of the present invention are shown in an exemplary and non-limiting manner, wherein:
[0010] Figure 1 It is a structural schematic diagram of a sand and gravel separation screen frame cleaning device;
[0011] Figure 2 for Figure 1 Schematic diagram of the structure in the AA direction.
[0012] Explanation of the accompanying drawings: 1. frame; 2. drum screen frame; 3. air duct; 4. air guide plate; 5. pressure plate; 6. fan. DETAILED DESCRIPTION
[0013] The utility model is further described in detail below with reference to the accompanying drawings.
[0014] A sand and gravel separation screen frame cleaning device comprises a frame 1, in which a drum screen frame 2 is rotatably installed, and an air duct 3 is fixedly installed in the frame 1 above the drum screen frame 2, and the air duct 3 is connected to a fan 6 fixedly installed on the outside of the frame 1, and an air outlet of the air duct 3 approaches the drum screen frame 2 downward, and air guide plates 4 are arranged on both sides of the air outlet of the air duct 3, and the air guide plates 4 can enable the air duct 3 to blow directly to the top of the drum screen frame 2 in a concentrated manner, so as to blow out the sand and gravel blocked in the sieve holes of the drum screen frame 2 and fall back into the drum screen frame 2, and a pressing plate 5 is hinged at the bottom end of the air guide plate 4, and a torsion spring is arranged at the hinge of the pressing plate 5, one end of the pressing plate 5 is tilted close to one end of the drum screen frame 2, and the drum screen frame 2 passes through the pressing plate 5 when it rotates, and the part of the stone blocked in the sieve hole of the drum screen frame 2 protruding outside the hole can contact with the pressing plate 5 and be pushed back into the drum screen frame 2.
[0015] The above description is merely an exemplary embodiment of the present invention and is not intended to limit the protection scope of the present invention. The protection scope of the present invention is determined by the appended claims.
Claims
1. A sand and gravel separation screen frame cleaning device, characterized in that: The invention comprises a frame (1), a drum screen frame (2) being rotatably mounted in the frame (1), an air duct (3) being fixedly mounted in the frame (1) above the drum screen frame (2), the air duct (3) being connected to a fan (6) fixedly mounted on the outside of the frame (1), an air outlet of the air duct (3) being downwardly close to the drum screen frame (2), and air guide plates (4) being arranged on both sides of the air outlet of the air duct (3).
2. A sand and gravel separation screen frame cleaning device according to claim 1, characterized in that: A pressure plate (5) is hinged at the bottom end of the air guide plate (4), a torsion spring is provided at the hinge of the pressure plate (5), and one end of the pressure plate (5) is tilted close to the other end of the drum screen frame (2).