Mica separation device for machine-made sand
By designing a mica separation device for manufactured sand, and utilizing screening and motor-driven platform rotation, the problem of low efficiency in obtaining mica content from manufactured sand was solved, achieving efficient and automatic separation of mica and sand.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-19
- Publication Date
- 2026-03-10
AI Technical Summary
The efficiency of obtaining mica content in manufactured sand using existing technologies is low, especially when the content is high, requiring a lot of manpower and resources, and traditional selection methods are time-consuming and labor-intensive.
Design a machined sand mica separation device, including a platform, a bottom frame, a damping shaft, a sieve box and a receiving box. The separation of mica and sand is achieved by sieving and the platform rotation driven by a motor, and the separation is carried out automatically by utilizing the difference between gravity and friction.
It significantly improves the efficiency of mica acquisition, reduces the time and labor intensity of manual sorting, and achieves efficient automatic separation of mica and sand.
Smart Images
Figure CN223980763U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of building material testing technology, specifically relating to a machine-made sand mica separation device. Background Technology
[0002] In the building materials industry, the mica content in manufactured sand is one of the important indicators for evaluating whether its quality meets the standard requirements. To obtain the mica content in manufactured sand, the test method in the national standard "Sand for Construction" is to pick out the mica from the manufactured sand with a steel needle under a magnifying glass. This method is characterized by very low efficiency, especially when the mica content in the manufactured sand is high. It may be necessary to pick out hundreds or even thousands of mica particles one by one from the sample with a steel needle, which may take several days. It can be seen that this test requires a lot of manpower and resources. Utility Model Content
[0003] To address the aforementioned problems, this invention proposes a machine-made sand mica separation device to improve the efficiency of mica acquisition.
[0004] A manufactured sand mica separation device, characterized in that it includes a platform, a bottom frame, a damping shaft, a sieve box, and a receiving box. The platform is rectangular, with a slide rail on the front side of its top surface. The bottom surface of the sieve box has a groove that mates with the slide rail, and the groove is slidably mounted on the slide rail. The top surface of the sieve box is open, and the sides are provided with sieve holes. Several wave-shaped slide tracks are provided on the rear side of the top surface of the platform. The bottom frame is composed of three rectangular plates spliced together. The bottom center of the platform is rotatably mounted on the front top of the left and right side plates via a damping shaft. One end of the damping shaft is connected to the output end of a motor. The motor is mounted on a motor platform, which is fixed to the side plates. The motor speed is 1.5 r / min to 3 r / min. The receiving box is a rectangular box without a top cover, placed inside the bottom frame and located on the rear side of the bottom frame. The rear side of the platform is located above the receiving box.
[0005] Preferably, the sieve aperture diameter is 1.18 mm, which is larger than the particle size of small sand and mica but smaller than the particle size of large sand.
[0006] Preferably, the rectangular length of the top surface of the platform is ≥25cm, the width is ≥21cm, the thickness is ≥1.5cm, and the surface roughness is 0.5~3mm.
[0007] Preferably, the left and right side plates of the bottom frame are ≥15cm in length, ≥10cm in width, and ≥1.5cm in thickness, and the distance between the left and right sides fits perfectly into the platform.
[0008] Preferably, the damping shaft allows the platform to rotate upwards by a maximum of 90° from a horizontal position.
[0009] Preferably, the length of the receiving box is equal to the length of the left and right side plates of the bottom frame, and the receiving box fits perfectly into the bottom frame.
[0010] The beneficial effects of this utility model are as follows:
[0011] Compared to picking out mica particles one by one from manufactured sand with steel needles, this equipment greatly improves experimental efficiency. Mica in manufactured sand is primarily flaky, while sand is mostly granular. Furthermore, mica in manufactured sand is lighter than sand. This equipment places the manufactured sand into a sieve box, which then sieves it left and right on a slide rail, retaining the larger sand particles. A motor then rotates the platform at a speed of 1.5 r / min to 3 r / min. Because the weight of the sand is greater than the friction with the platform surface, the sand rolls off the platform under gravity. Multiple tests have verified that this rotation speed ensures the sand rolls off while retaining the mica on the platform. Due to the lightweight and flaky nature of mica, a large number of mica flakes are retained on the platform due to friction. The wavy slide increases the contact area between the manufactured sand and the platform during the descent, providing more space for rolling separation, thus achieving the separation of sand and mica in the manufactured sand. This rolling separation process is repeated until the sand falling into the receiving box contains no mica. Attached Figure Description
[0012] Figure 1 This is a front view of a machine-made sand mica separation device.
[0013] Figure 2 This is a side view of the initial state of a machine-made sand mica separation device.
[0014] Figure 3 This is a top view of a machine-made sand mica separation device in use.
[0015] Figure 4 This is a top view of the platform.
[0016] In the diagram: 1-platform, 11-slide rail, 2-bottom frame, 3-damping shaft, 4-accommodating box, 5-screen box, 6-motor, 61-motor platform. Detailed Implementation
[0017] Example 1: Includes a platform 1, a base frame 2, a damping shaft 3, a receiving box 4, and a sieve box 5. The platform 1 is rectangular, 30cm long, 21cm wide, and 1.5cm thick, with a top surface roughness of 0.7mm. A slide rail 11 is provided on the front side of its top surface. The bottom surface of the sieve box 5 has a groove that mates with the slide rail. The groove is slidably mounted on the slide rail 11, allowing the sieve box to slide left and right on the slide rail for sieving. The top surface of the sieve box 5 is open, and the sides have sieve holes with a diameter of 1.18mm. The sieve box 5 can sieve out mica and small-diameter sand from the manufactured sand, while large-diameter sand remains directly in the sieve box 5. After sieving, the sieve box 5 is removed and poured out. If there are individual large mica particles in the large-diameter sand, they can be directly removed and placed into the receiving box. Several wavy tracks are provided on the rear side of the top surface of the platform 1. These wavy tracks increase the contact area between the manufactured sand and the platform 1 during its descent, allowing for greater separation from the mica. The base frame 2 is composed of three rectangular plates spliced together on the left, right, and lower sides. The left and right side plates of the base frame 2 are 20cm long, 10cm wide, and 2cm thick. The platform 1 is rotatably mounted on the front top of the left and right side plates via a damping shaft 3 at the center of its bottom. One end of the damping shaft 3 is connected to the output end of the motor 6. The motor 6 is mounted on the motor platform 61, which is fixed to the side plates. The motor speed is 3r / min. The receiving box 4 is a rectangular box without a top cover, placed inside the base frame 2 and located at the rear of the base frame 2. The rear of the platform 1 is located above the receiving box 3.
[0018] In use, weigh a certain amount of manufactured sand according to the relevant specifications. First, stack the two receiving boxes 4 in the base frame 2, adjust the platform 1 to a horizontal state, and then place the manufactured sand in the sieve box 5. Drive the platform 1 to rotate at a speed of 3 r / min using the motor 6. The damping shaft 3 controls the platform 1 to remain stable at different angles until all the manufactured sand on the platform 1 falls into the upper receiving box 4 in the base frame 2. Remove the upper receiving box 4, and rotate the platform further upward to let the mica flakes fall into the lower receiving box 4 in the base frame 2. If some mica flakes remain on the platform 1, gently tap the platform 1 to help them fall off. Adjust the platform 1 to a horizontal state again, pour the manufactured sand from the upper receiving box 4 onto the platform 1, and repeat the above steps until the manufactured sand no longer contains mica.
Claims
1. A mechanism of sand mica separation device, characterized in that: It includes platform, bottom frame, damping shaft, sieve box and containing box, the platform is rectangular, the front side of its top surface is provided with slide rail, the bottom surface of the sieve box is provided with slide groove matched with the slide rail, the slide groove is slidingly installed on the slide rail, the top surface of the sieve box is open, and the side surface is provided with sieve hole; the rear side of the top surface of the platform is provided with several wave-shaped slide ways; the bottom frame is composed of three left and right lower rectangular plates, the platform is rotatably installed at the top front side of the left and right side plates through the damping shaft at the center of the bottom of the platform, one end of the damping shaft is connected with the output end of the motor, the motor is installed on the motor platform, the motor platform is fixed on the side plate, the rotating speed of the motor is 1.5r / min-3r / min, the containing box is rectangular box without top cover, is placed in the bottom frame and is located at the rear side of the bottom frame, and the rear side of the platform is located above the containing box.
2. A manufactured-sand mica-separation device as claimed in claim 1, characterized in that The sieve hole diameter is 1.18mm.
3. A mechanism sand mica separation device as claimed in claim 1, characterized in that The rectangular length of the top surface of the platform is greater than or equal to 25cm, the width is greater than or equal to 21cm, the thickness is greater than or equal to 1.5cm, and the roughness of the top surface is 0.5-3mm.
4. A manufactured-sand mica-separation device as claimed in claim 1, wherein The length of the left and right side plates of the bottom frame is greater than or equal to 15cm, the width is greater than or equal to 10cm, the thickness is greater than or equal to 1.5cm, and the distance between the left and right side edges is just clamped into the platform.
5. A manufactured-sand mica-separation device as claimed in claim 1, wherein The maximum rotating angle of the damping shaft is 90°.
6. A manufactured-sand mica-separation device as claimed in claim 1, wherein The length of the containing box is equal to the length of the left and right side plates of the bottom frame, and the containing box is clamped into the bottom frame.