High efficiency trommel screen
By setting coarse and fine screen cylinders in parallel in a rotary drum screen and driving them synchronously using a control module, efficient screening of quartz sand is achieved, solving the problem of small-particle quartz sand being entrained and improving screening efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XINYANG LOYALTY MASCH CO LTD
- Filing Date
- 2025-05-30
- Publication Date
- 2026-06-09
AI Technical Summary
When screening quartz sand, existing rotary drum screens tend to cause small-sized quartz sand particles to be entrained by large-sized quartz sand particles, resulting in low screening efficiency.
Design a high-efficiency drum screen, comprising a coarse screen and a fine screen in parallel. The two drum screens are synchronously driven by a control module to perform screening. The coarse screen initially separates the quartz sand, and the fine screen further separates the remaining part. The quartz sand that does not pass through the fine screen is returned to the crushing device for processing.
This improves the screening efficiency of quartz sand, prevents small-sized quartz sand from being entrained by large-sized quartz sand, and ensures the accuracy and efficiency of screening results.
Smart Images
Figure CN224332337U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of screening equipment, specifically to a high-efficiency drum screen. Background Technology
[0002] Quartz sand is one of the raw materials for producing quartz stone slabs. The production of quartz stone slabs has requirements on the particle size of quartz sand. Quartz sand with a particle size that is too large will cause the slabs to have reduced compressive and flexural strength, reduced wear resistance, and poor thermal stability. Therefore, it is necessary to use a screening device to screen the quartz sand. Commonly used screening equipment for quartz sand includes drum screens. However, drum screens are prone to causing small-sized quartz sand particles to be carried away by large-sized quartz sand particles during the screening process, which affects the screening results and leads to low efficiency. Therefore, it is necessary to design a quartz sand drum screen with high screening efficiency. Summary of the Invention
[0003] The purpose of this invention is to provide a high-efficiency drum screen with the advantage of high screening efficiency.
[0004] The technical solution adopted is as follows:
[0005] A high-efficiency rotary drum screen includes a support frame, an outer shell at the upper end of the support frame, and two rotary drum screens arranged side by side inside the outer shell. Each rotary drum screen includes an inner coarse screen cylinder and an outer fine screen cylinder. Feed hoppers corresponding to both rotary drum screens are provided on the side of the outer shell, and coarse discharge port and fine discharge port are provided at the lower end of the outer shell. Two drive units are provided on the support frame, and each drive unit is provided with a drive shaft extending into the outer shell. The two drive shafts are connected to the two rotary drum screens one by one. A control module is provided on the support platform, and the control module is connected to both drive units.
[0006] Preferably, the drive unit includes an electric motor and a cylindrical gear reducer. The electric motor includes a drive shaft with a drive pulley. The cylindrical gear reducer includes an input shaft and an output shaft with a driven pulley. The drive pulley and the driven pulley are connected by a belt drive. The output shaft is coaxially connected to the corresponding transmission shaft by a coupling.
[0007] Preferably, a protective cover is provided on the support frame on the outer side of the belt.
[0008] Preferably, an access door is provided on the side of the outer casing.
[0009] Compared to existing technologies, the advantages are:
[0010] Two parallel drum screens simultaneously screen quartz sand, resulting in a large screening capacity. During the screening process, the quartz sand is divided into two parts by the coarse screen and then further divided into two parts by the fine screen. The quartz sand that passes through the fine screen is used for the next process, while the remaining quartz sand is returned to the external crushing device for crushing. This prevents small-sized quartz sand from being carried away by large-sized quartz sand and improves screening efficiency. Attached Figure Description
[0011] Figure 1 This is a three-dimensional structural diagram of a high-efficiency drum screen according to this utility model.
[0012] Figure 2 yes Figure 1 A schematic diagram of the structure at point A in the middle.
[0013] Figure 3 This is a front view schematic diagram of a high-efficiency drum screen according to this utility model.
[0014] Figure 4 This is a side view of the structure of a high-efficiency drum screen according to this utility model.
[0015] Figure 5 This is a top view schematic diagram of a high-efficiency drum screen according to this utility model.
[0016] Figure 6 This is a side view of the structure of a high-efficiency drum screen according to the present invention.
[0017] In the diagram: 1. Support frame; 2. Outer shell; 3. Rotary drum screen; 4. Coarse screen cylinder; 5. Fine screen cylinder; 6. Feed hopper; 7. Inspection door; 8. Coarse discharge port; 9. Fine discharge port; 10. Electric motor; 11. Cylindrical gear reducer; 12. Protective cover. Detailed Implementation
[0018] The present invention will be further described below with reference to specific embodiments, such as... Figures 1 to 6 As shown:
[0019] Example 1: A high-efficiency drum screen 3 includes a support frame 1, an outer shell 2 at the upper end of the support frame 1, and two drum screens 3 arranged side by side inside the outer shell 2. Both drum screens 3 extend horizontally. The drum screen 3 includes an inner coarse screen cylinder 4 and an outer fine screen cylinder 5. The side of the outer shell 2 is provided with a feed hopper 6 corresponding to both drum screens 3. Quartz sand fed into the feed hopper 6 is guided into the two drum screens 3 by the feed hopper 6.
[0020] The lower end of the outer shell 2 is provided with a coarse discharge port 8 and a fine discharge port 9. Quartz sand intercepted by the coarse screen cylinder 4 and the fine screen cylinder 5 is discharged from the coarse discharge port 8, and quartz sand discharged from the fine screen cylinder 5 is discharged from the fine discharge port 9. The support frame 1 is provided with two drive units, and each drive unit is provided with a transmission shaft extending into the outer shell 2. The two transmission shafts are connected to the two drum screens 3 one-to-one. A control module is provided on the support platform. The control module is connected to both drive units. The control module controls the two drive units to start and stop synchronously and at the same speed, so that the two drum screens 3 rotate synchronously.
[0021] Example 2: A high-efficiency drum screen 3 includes a support frame 1, an outer shell 2 at the upper end of the support frame 1, and two drum screens 3 arranged side by side inside the outer shell 2. Both drum screens 3 extend horizontally. The drum screen 3 includes an inner coarse screen cylinder 4 and an outer fine screen cylinder 5. The side of the outer shell 2 is provided with a feed hopper 6 corresponding to both drum screens 3. Quartz sand fed into the feed hopper 6 is guided into the two drum screens 3 by the feed hopper 6. The side of the outer shell 2 is provided with a maintenance door 7, which is used to enter the outer shell 2 to inspect the drum screens 3.
[0022] The lower end of the outer shell 2 is provided with a coarse discharge port 8 and a fine discharge port 9. Quartz sand intercepted by the coarse screen cylinder 4 and the fine screen cylinder 5 is discharged from the coarse discharge port 8, and quartz sand discharged from the fine screen cylinder 5 is discharged from the fine discharge port 9. The support frame 1 is provided with two drive units, and each drive unit is provided with a transmission shaft extending into the outer shell 2. The two transmission shafts are connected to the two drum screens 3 one-to-one. A control module is provided on the support platform. The control module is connected to both drive units. The control module controls the two drive units to start and stop synchronously and at the same speed, so that the two drum screens 3 rotate synchronously.
[0023] The drive unit includes a motor 10 and a cylindrical gear reducer 11. The motor 10 includes a drive shaft with a drive pulley. The cylindrical gear reducer 11 includes an input shaft and an output shaft. The input shaft has a driven pulley. The drive pulley and the driven pulley are driven by a belt. The output shaft is coaxially connected to the corresponding drive shaft by a coupling. A protective cover 12 is provided on the support frame 1 on the outside of the belt.
[0024] The working principle is as follows: The control module controls the two drive units to start synchronously and rotate at the same speed, feeding the quartz sand from the feed hopper 6 into the two drum screens 3. The rotating drum screens 3 screen the quartz sand. The two parallel drum screens 3 screen the quartz sand at the same time, with a large screening capacity. The quartz sand is divided into two parts by the coarse screen cylinder 4, and the fine screen cylinder 5 divides the remaining quartz sand into two parts. The quartz sand that leaks out from the fine screen cylinder 5 is used for the next process, avoiding the discharge of small-sized quartz sand by being carried away by large-sized quartz sand.
[0025] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.
Claims
1. A high-efficiency drum screen (3), characterized in that: The system includes a support frame (1), an outer shell (2) at the top of the support frame (1), two drum screens (3) arranged side by side inside the outer shell (2), the drum screens (3) include an inner coarse screen cylinder (4) and an outer fine screen cylinder (5), the side of the outer shell (2) is provided with a feed hopper (6) corresponding to both drum screens (3), the lower end of the outer shell (2) is provided with a coarse discharge port (8) and a fine discharge port (9), the support frame (1) is provided with two drive units, both drive units are provided with a transmission shaft extending into the outer shell (2), the two transmission shafts are connected to the two drum screens (3) one by one, and a control module is provided on the support platform, the control module is connected to both drive units.
2. The high-efficiency drum screen (3) as described in claim 1, characterized in that: The drive unit includes an electric motor (10) and a cylindrical gear reducer (11). The electric motor (10) includes a drive shaft and a drive pulley. The cylindrical gear reducer (11) includes an input shaft and an output shaft. The input shaft is equipped with a driven pulley. The drive pulley and the driven pulley are driven by a belt. The output shaft is coaxially connected to the corresponding transmission shaft by a coupling.
3. The high-efficiency drum screen (3) as described in claim 2, characterized in that: A protective cover (12) is provided on the support frame (1) on the outside of the belt.
4. The high-efficiency drum screen (3) as described in claim 1, characterized in that: The outer casing (2) is provided with an inspection door (7) on its side.