Laboratory screening device for screening large amount of sand with single particle size at low cost
By designing a laboratory screening device including main body, upper wooden board, lower wooden board, flat vibrator, screen mesh and sand bucket, the problem of low efficiency and high cost of screening single particle size sand in the prior art in large batches is solved, and a low-cost and efficient screening effect is achieved.
Patent Information
- Application Number
- CN202311139904.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-09-04
- Publication Date
- 2025-03-04
AI Technical Summary
The existing laboratory sand screening instruments are inefficient, cost-effective, and require special equipment and training when screening single particle size sand in large batches.
A laboratory screening device is designed, including the main body, upper wooden board, lower wooden board, flat vibrator, screen mesh and sand bucket. It is fixed by elastic connection and rope, and uses existing equipment to achieve low-cost and efficient screening.
It realizes efficient screening of single particle size sand in large batches in university laboratories, saving space and cost, no special training is required, and is highly practical.
Smart Images
Figure CN119549387A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of laboratory sand screening, in particular to a laboratory sand screening device for screening sand of a single particle size in large quantities and at low cost. Background Art
[0002] At present, most of the sand screening instruments in university laboratories use vibrating screening machines for screening. Although the sand can be screened according to particle grading, the quality of the screened sand is small and the screening efficiency is low. It is particularly inconvenient when a large amount of sand needs to be screened at one time. Considering that university laboratories are insufficiently funded, it is necessary to make full use of existing equipment for experiments. Summary of the invention
[0003] The purpose of the present invention is to provide a laboratory screening device for large quantities of single-particle-size sand at low cost, aiming to solve or improve at least one of the above-mentioned technical problems, to screen large quantities of single-particle-size sand in university laboratories, and to make full use of existing laboratory instruments and equipment, with low production and use costs, saving indoor space, high efficiency, no need for special training for operators, and high practicality.
[0004] To achieve the above object, the present invention provides the following scheme: The present invention provides a laboratory-use device for screening sand of a single particle size in large quantities and at low cost, comprising a main body, an upper wooden board, a lower wooden board, a flat plate vibrator, a screen, and a sand bucket, wherein the main body is elastically connected to the upper wooden board, the upper wooden board is connected to the flat plate vibrator, the upper wooden board has a hole connected to the screen, and the upper wooden board is fixedly connected to the lower wooden board;
[0005] Preferably, the main body is elastically connected to the upper wooden board through foam.
[0006] Preferably, the upper wooden board is connected to the flat plate vibrator via a rope.
[0007] Preferably, holes are drilled in the upper wooden board to place a nylon bag with upper and lower openings to fix and connect the screen.
[0008] Preferably, the upper wooden board is fixedly connected to the lower wooden board.
[0009] Preferably, a sand bucket is placed on the lower wooden board.
[0010] A laboratory-use device for screening sand of a single particle size in large quantities and at low cost, with the specific steps of: cutting the foam 8 in the packaging box into a fixed height and fixing it on the upper layer of the main body 1, cutting a hole in the upper wooden board 2 that can just fit the screen 5, and putting it into the frame of the main body 1, placing the lower wooden board 3 directly on the lower layer of the main body 1, placing the sand bucket 9 on the wooden board 3, cutting the nylon bag 7 filled with sand up and down, and putting it into the hole of the upper wooden board 2, and then putting the screen 5 in. Since the top of the screen 5 has an enlarged structure, the screen 5 is just firmly connected to it through the nylon bag 7. Place the flat vibrator 4 on the upper wooden board 2, and tie the flat vibrator 4 with a rope 6 as shown in the figure to prevent it from moving.
[0011] The sieve 5 can be a multi-layer sieve 5, wherein the bottom layer is a sieve 5 with a larger aperture, and the second layer is a target sieve 5 with a smaller aperture than the bottom sieve 5. The advantage of this is that the sand that cannot pass through the target sieve can be poured out without moving the bottom sieve 5, and the bottom sieve 5 will not get stuck with the sand, so it does not need to be moved. The third layer of sieve 5 and above are for coarse screening of the sand to increase work efficiency.
[0012] It is usually a machine for vibrating concrete samples in the laboratory. If the experiment requires, the rope 6 is removed and the flat plate vibrator 4 can be used without unnecessary operations. After the flat plate vibrator 4 is used, it can be loaded into the device for sand screening.
[0013] The present invention discloses the following technical effects:
[0014] The invention discloses a laboratory screening device for a large amount of sand with a single particle size at a low cost. The device is used to screen a large amount of sand with a single particle size in a university laboratory and fully utilizes the existing instruments and equipment in the laboratory. The device has low production and use costs, saves indoor space, is highly efficient, does not require special training for operators, and is highly practical. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0016] Figure 1 A schematic diagram of a low-cost screening device for large quantities of sand of a single particle size for laboratory use;
[0017] Figure 2 A schematic cross-sectional view of a laboratory device for screening large quantities of sand of a single particle size at low cost;
[0018] In the figure: 1. main body; 2. upper wooden board; 3. lower wooden board; 4. flat plate vibrator; 5. screen; 6. rope; 7. nylon bag; 8. foam; 9. sand bucket. DETAILED DESCRIPTION
[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0020] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.
[0021] Example 1
[0022] The present invention provides the following scheme: The present invention provides a large-scale and low-cost screening device for single-particle sand in a laboratory, comprising a main body, an upper wooden board, a lower wooden board, a flat plate vibrator, a screen, and a sand bucket, wherein the main body is elastically connected to the upper wooden board, the upper wooden board is connected to the flat plate vibrator, the upper wooden board has a hole connected to the screen, and the upper wooden board is fixedly connected to the lower wooden board;
[0023] Cut the foam 8 in the packaging box into a fixed height and fix it on the upper layer of the main body 1. Cut a hole in the upper wooden board 2 that can just fit the screen 5 and put it into the frame of the main body 1. Place the lower wooden board 3 directly on the lower layer of the main body 1. At the same time, cut the nylon bag 7 filled with sand up and down and put it into the hole of the upper wooden board 2. Then put the screen 5 in. Since the top of the screen 5 has an expanded structure, the screen 5 is just firmly connected to it through the nylon bag 7. Place the flat vibrator 4 on the upper wooden board 2 and tie it up with a rope 6 as shown in the figure to prevent it from moving.
[0024] 5 can use multiple layers of screens 5, wherein the bottom layer is a screen 5 with a larger aperture, and the second layer is a target screen 5 with a smaller aperture than the bottom layer screen 5. The advantage of this is that the sand that cannot pass through the target screen can be poured out without moving the bottom layer screen 5, and the bottom layer screen 5 will not get stuck with sand, so it does not need to be moved. The third layer of screens 5 and above are for coarse screening of sand to increase work efficiency.
[0025] It is usually a machine for vibrating concrete samples in the laboratory. If the experiment requires, the rope 6 is removed and the flat plate vibrator 4 can be used without unnecessary operations. After the flat plate vibrator 4 is used, it can be loaded into the device for sand screening.
Claims
1. The present invention provides a laboratory-use device for screening sand of a single particle size in large quantities and at low cost, comprising a main body, an upper wooden board, a lower wooden board, a flat plate vibrator, a screen, and a sand bucket, wherein the main body is elastically connected to the upper wooden board, the upper wooden board is connected to the flat plate vibrator, the upper wooden board has a hole connected to the screen, and the upper wooden board is fixedly connected to the lower wooden board; 2. The laboratory screening device for single particle size sand in large quantities and at low cost according to claim 1 is characterized by: The main body is elastically connected to the upper wooden board through foam.
3. The laboratory-use device for screening sand of a single particle size in large quantities and at low cost according to claim 1 is characterized by: The upper wooden board is connected with the flat plate vibrator through a rope.
4. The laboratory-use device for screening sand of a single particle size in large quantities and at low cost according to claim 1 is characterized by: Holes are drilled on the upper wooden board to place nylon bags with upper and lower openings to fix and connect the screen.
5. The laboratory-use device for screening sand of a single particle size in large quantities and at low cost according to claim 1 is characterized by: The upper wooden board is fixedly connected to the lower wooden board.
6. The laboratory-use device for screening sand of a single particle size in large quantities and at low cost according to claim 1 is characterized by: A sand bucket is placed on the lower wooden board.