Device for quickly determining content of stone powder in machine-made sand for concrete

Abstract

The utility model discloses a quick determination device of machine-made sandstone powder content for concrete, and one side of the fixing frame is equipped with a screening assembly, a screw rod is rotatably installed at the top end of the fixing frame, a guide rod is welded at the bottom end of the fixing frame, the same end of the guide rod and the screw rod is respectively connected with the bottom end and the top end of a movable frame, a top sieve cylinder is installed at the top end between the fixing frame and the movable frame, a middle sieve cylinder is clamped at the bottom end of the top sieve cylinder, a bottom powder cylinder is clamped and installed at the bottom end of the middle sieve cylinder, a limiting clamp is welded at the corresponding limiting ring of the opposite surface of the fixing frame and the movable frame, and a discharge pipe is welded at the bottom end of the middle sieve cylinder and the bottom powder cylinder. The utility model shakes the combination of the fixing frame and the movable frame, screens the machine-made sand in turn, weighs the stone powder, detects the stone powder content, and can continuously screen multiple times after the combination is completed. Once combined, multiple operations are needed, and only when the screening particle size needs to be replaced or changed can the detection efficiency be greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of manufactured sand production technology, specifically a device for rapidly determining the stone powder content of manufactured sand for concrete. Background Technology

[0002] Manufactured sand is made by crushing stones. Inevitably, a certain amount of stone powder is produced during the crushing process. When preparing concrete, the amount of stone powder will affect the performance of the concrete. Therefore, the stone powder content of the manufactured sand should be tested as soon as it arrives on site.

[0003] There are three main types of methods for detecting stone powder content: chemical analysis, physical analysis, and microscopic observation. However, regardless of the method, detecting stone powder content is time-consuming, labor-intensive, inefficient, and time-consuming, which is not conducive to rapid on-site testing and thus delays the progress of the project. Utility Model Content

[0004] This utility model provides a rapid determination device for the content of aggregate powder in manufactured sand for concrete, which can effectively solve the problems mentioned in the background art, such as the time-consuming and labor-intensive method of detecting aggregate powder content, low detection efficiency, long time consumption, and unfavorable for rapid on-site detection, thus delaying the progress of the project.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a rapid determination device for the content of manufactured sand and gravel powder in concrete, including a fixed frame, a screening component installed on one side of the fixed frame, the screening component including a bottom support ring, a lead screw, a rotating handle, a guide rod, a movable frame, a top sieve cylinder, a middle sieve cylinder, a bottom powder cylinder, a limiting ring, a limiting clip, and a discharge pipe;

[0006] A bottom support ring is welded to the bottom end of the fixed frame, a lead screw is rotatably installed at the top end of the fixed frame, a rotating handle is welded to the middle of the lead screw, a guide rod is welded to the bottom end of the fixed frame, the same end of the guide rod and the lead screw are respectively connected to the bottom end and the top end of the movable frame, a top sieve cylinder is installed at the top end between the fixed frame and the movable frame, a middle sieve cylinder is snapped into the bottom end of the top sieve cylinder, a bottom powder cylinder is snapped into the bottom end of the middle sieve cylinder, and limit rings are fixedly sleeved at the top and bottom ends of the top sieve cylinder, the middle sieve cylinder and the bottom powder cylinder, and limit clips are welded to the corresponding limit rings on the opposite sides of the fixed frame and the movable frame, and discharge pipes are welded through the bottom ends of the middle sieve cylinder and the bottom powder cylinder.

[0007] According to the above technical solution, a guide opening is provided at the bottom end of the bottom support ring corresponding to the movable frame, and the bottom end of the movable frame is movably embedded in the guide opening.

[0008] According to the above technical solution, the movable frame has a smooth hole at the guide rod and a screw hole at the lead screw.

[0009] According to the above technical solution, a coarse filter screen is installed at the bottom of the top screen cylinder, and a fine filter screen is installed at the bottom of the middle screen cylinder.

[0010] According to the above technical solution, the bottom end of the bottom powder cylinder is connected to a support vibration assembly, which includes a contact plate, a snap-fit ​​block, an extrusion screw, a vibration motor, a support rubber column, and a bottom counterweight plate;

[0011] The bottom powder cylinder is placed on the top surface of the contact plate. Both ends of the contact plate are welded with snap-fit ​​blocks. A pressing screw is installed on one side of the snap-fit ​​block through a screw hole. A vibration motor is installed in the middle of the bottom surface of the contact plate. Supporting rubber columns are uniformly welded to the edge of the bottom surface of the contact plate. The bottom ends of several of the supporting rubber columns are spot-welded to the bottom counterweight plate.

[0012] According to the above technical solution, the side of the snap-fit ​​block near the contact plate is arc-shaped, and the input end of the vibration motor and the output end of the external power supply are electrically connected.

[0013] Compared with the prior art, the advantages of this utility model are: the structure of this utility model is scientific and reasonable, and it is safe and convenient to use;

[0014] 1. Equipped with a screening component, when testing is required, the sampled manufactured sand is placed in the top sieve cylinder. The combination of the fixed frame and the movable frame is shaken to screen the manufactured sand sequentially. Large pieces of sand and gravel remain in the top sieve cylinder, medium-sized and qualified sand and gravel remain in the middle sieve cylinder, and fine powder remains in the bottom powder cylinder. The discharge pipes of the middle sieve cylinder and the bottom powder cylinder are opened sequentially to weigh the stone powder for testing the stone powder content. After the assembly is completed, multiple screenings can be performed continuously. One assembly allows for multiple operations, and replacement is only required when damaged or when the screening particle size needs to be changed, greatly improving the testing efficiency.

[0015] 2. Equipped with a support vibration assembly, if multiple measurements are required, manual sieving alone is inefficient. The combined top sieve cylinder, middle sieve cylinder, and bottom powder cylinder are placed on the top surface of the contact plate, the screw is rotated to compress and fix the powder, the vibration motor is started, and the powder is automatically vibrated and sieved. The testing personnel only need to replenish the test samples periodically and remove the stone powder and other sieved materials, which further improves the testing efficiency. Attached Figure Description

[0016] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0017] In the attached diagram:

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2This is a schematic diagram of the structure of the screening component of this utility model;

[0020] Figure 3 This is a schematic diagram of the installation structure of the guide rod of this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the vibration support assembly of this utility model;

[0022] Numbered in the diagram: 1. Fixture;

[0023] 2. Screening components; 201. Bottom support ring; 202. Lead screw; 203. Rotating handle; 204. Guide rod; 205. Movable frame; 206. Top sieve cylinder; 207. Middle sieve cylinder; 208. Bottom powder cylinder; 209. Limiting ring; 210. Limiting clip; 211. Discharge pipe;

[0024] 3. Vibration support assembly; 301. Contact plate; 302. Clip block; 303. Extrusion screw; 304. Vibration motor; 305. Supporting rubber column; 306. Bottom counterweight plate. Detailed Implementation

[0025] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0026] Example: Figure 1-4 As shown, this utility model provides a technical solution for a rapid determination device for the content of manufactured sand and gravel powder in concrete, including a fixed frame 1. A screening component 2 is installed on one side of the fixed frame 1. The screening component 2 includes a bottom support ring 201, a lead screw 202, a rotating handle 203, a guide rod 204, a movable frame 205, a top screen cylinder 206, a middle screen cylinder 207, a bottom powder cylinder 208, a limiting ring 209, a limiting clip 210, and a discharge pipe 211.

[0027] A bottom support ring 201 is welded to the bottom end of the fixed frame 1. A lead screw 202 is rotatably mounted on the top end of the fixed frame 1. A rotating handle 203 is welded to the middle of the lead screw 202. A guide rod 204 is welded to the bottom end of the fixed frame 1. The guide rod 204 and the lead screw 202 are respectively connected to the bottom and top ends of the movable frame 205. A guide opening is provided at the bottom end of the bottom support ring 201 corresponding to the movable frame 205. The bottom end of the movable frame 205 is movably embedded in the guide opening, which facilitates the translation of the movable frame 205 and improves its stability. A smooth hole is provided at the movable frame 205 corresponding to the guide rod 204. A screw hole is provided at the movable frame 205 corresponding to the lead screw 202, which facilitates the movement of one end of the movable frame. At position 205, a top screen cylinder 206 is installed at the top between the fixed frame 1 and the movable frame 205. A middle screen cylinder 207 is snapped onto the bottom of the top screen cylinder 206. A coarse filter screen is installed at the bottom of the top screen cylinder 206, and a fine filter screen is installed at the bottom of the middle screen cylinder 207, which facilitates the screening of stones and dust of different diameters in multiple stages. A bottom powder cylinder 208 is snapped onto the bottom of the middle screen cylinder 207. Limiting rings 209 are fixedly sleeved at the top and bottom of the top screen cylinder 206, the middle screen cylinder 207, and the bottom powder cylinder 208. Limiting clips 210 are welded to the corresponding limiting rings 209 on the opposite sides of the fixed frame 1 and the movable frame 205. Discharge pipes 211 are welded through the bottom of the middle screen cylinder 207 and the bottom powder cylinder 208.

[0028] The bottom powder cylinder 208 is connected to a support vibration assembly 3, which includes a contact plate 301, a snap-fit ​​block 302, an extrusion screw 303, a vibration motor 304, a support rubber column 305, and a bottom counterweight plate 306.

[0029] The bottom powder cylinder 208 is placed on the top surface of the contact plate 301. Both ends of the contact plate 301 are welded with snap-fit ​​blocks 302. A pressing screw 303 is installed on one side of the snap-fit ​​block 302 through a screw hole. A vibration motor 304 is installed in the middle of the bottom surface of the contact plate 301. The side of the snap-fit ​​block 302 near the contact plate 301 is an arc-shaped surface. The input end of the vibration motor 304 is electrically connected to the output end of the external power supply to ensure that the vibration motor 304 operates normally. Supporting rubber columns 305 are evenly welded to the edge of the bottom surface of the contact plate 301. The bottom ends of several supporting rubber columns 305 are spot-welded to the bottom counterweight plate 306.

[0030] The working principle and usage process of this utility model are as follows: The top sieve cylinder 206, the middle sieve cylinder 207, and the bottom powder cylinder 208 are stacked in sequence, and the limiting rings 209 are brought close to each other. The rotating handle 203 is turned, which drives the lead screw 202 to rotate. The lead screw 202 pushes the movable frame 205 to slide along the guide rod 204, and the distance between the fixed frame 1 and the movable frame 205 is increased. The stacked top sieve cylinder 206, the middle sieve cylinder 207, and the bottom powder cylinder 208 are placed on the top surface of the bottom support ring 201. The rotating handle 203 is turned in the opposite direction, and the lead screw 202 rotates in the opposite direction. The fixed frame 1 and the movable frame 205 are brought close to each other, clamping the stacked top sieve cylinder 206, the middle sieve cylinder 207, and the bottom powder cylinder 208. The limiting card 210 is engaged in the connecting limiting ring 209 for fixation, thus completing the preparation work before the measurement.

[0031] When testing is required, the sampled manufactured sand is placed in the top sieve cylinder 206. The combination of the fixed frame 1 and the movable frame 205 is shaken to screen the manufactured sand in sequence. Large pieces of sand and gravel are retained in the top sieve cylinder 206, medium-sized and qualified sand and gravel are retained in the middle sieve cylinder 207, and fine powder is contained in the bottom powder cylinder 208. The discharge pipes 211 of the middle sieve cylinder 207 and the bottom powder cylinder 208 are opened in sequence to weigh the stone powder and test the stone powder content. After the combination is completed, multiple screenings can be performed continuously. One combination allows for multiple operations. Replacement is only required when the screened particle size needs to be changed or damaged, which greatly improves the testing efficiency.

[0032] If multiple tests are required, manual sieving alone is inefficient. The combined top sieve cylinder 206, middle sieve cylinder 207, and bottom powder cylinder 208 are placed on the top surface of the contact plate 301. The extrusion screw 303 rotates and extrudes and fixes the sample. The vibration motor 304 is started to automatically vibrate and sieve. The testing personnel only need to replenish the test sample periodically and remove the stone powder and other sieved materials, which further improves the testing efficiency.

[0033] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A rapid determination device for the content of aggregate powder in manufactured sand for concrete, comprising a fixing frame (1), characterized in that: A screening component (2) is installed on one side of the fixing frame (1), and the screening component (2) includes a bottom support ring (201); The bottom of the fixed frame (1) is welded with a bottom support ring (201), and a lead screw (202) is rotatably installed on the top of the fixed frame (1). A rotating handle (203) is welded to the middle of the lead screw (202). A guide rod (204) is welded to the bottom of the fixed frame (1). The guide rod (204) and the lead screw (202) are respectively connected to the bottom and top of the movable frame (205). A top screen cylinder (206) is installed at the top between the fixed frame (1) and the movable frame (205). 206) A middle sieve cylinder (207) is snapped at the bottom end, and a bottom powder cylinder (208) is snapped at the bottom end of the middle sieve cylinder (207). Limiting rings (209) are fixedly sleeved at the top and bottom ends of the top sieve cylinder (206), the middle sieve cylinder (207) and the bottom powder cylinder (208). Limiting clips (210) are welded to the corresponding limiting rings (209) on the opposite sides of the fixed frame (1) and the movable frame (205). Discharge pipes (211) are welded through the bottom ends of the middle sieve cylinder (207) and the bottom powder cylinder (208).

2. The rapid determination device for the content of manufactured sand and gravel powder in concrete according to claim 1, characterized in that, The bottom support ring (201) has a guide opening at the bottom end corresponding to the movable frame (205), and the bottom end of the movable frame (205) is movably embedded in the guide opening.

3. The rapid determination device for the content of manufactured sand and gravel powder in concrete according to claim 1, characterized in that, The movable frame (205) has a smooth hole at the guide rod (204), and the movable frame (205) has a screw hole at the lead screw (202).

4. The rapid determination device for the content of manufactured sand and gravel powder in concrete according to claim 1, characterized in that, A coarse filter screen is installed at the bottom of the top screen cylinder (206), and a fine filter screen is installed at the bottom of the middle screen cylinder (207).

5. The rapid determination device for the content of manufactured sand and gravel powder in concrete according to claim 1, characterized in that, The bottom powder cylinder (208) is connected to a support vibration assembly (3) at its bottom end, and the support vibration assembly (3) includes a contact plate (301); The bottom powder cylinder (208) is placed on the top surface of the contact plate (301). Both ends of the contact plate (301) are welded with snap-fit ​​blocks (302). A pressing screw (303) is installed on one side of the snap-fit ​​block (302) through a screw hole. A vibration motor (304) is installed in the middle of the bottom surface of the contact plate (301). Supporting rubber columns (305) are uniformly welded to the edge of the bottom surface of the contact plate (301). The bottom ends of several supporting rubber columns (305) are spot-welded to the bottom counterweight plate (306).

6. The rapid determination device for the content of manufactured sand and gravel powder in concrete according to claim 5, characterized in that, The side of the snap-fit ​​block (302) near the contact plate (301) is arc-shaped, and the input end of the vibration motor (304) is electrically connected to the output end of the external power supply.

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