A highway test detects raw material water washes screening test device

Abstract

The utility model discloses a highway test detects raw material washing and screening test device relates to highway engineering material test detection technical field, including the processing jar, the upper portion of processing jar is provided with first motor, and the output of first motor is fixedly connected with the axle rod that penetrates to the processing jar, the upper portion and the lower portion of axle rod surface all are provided with sieve plate, and the surface of processing jar is equipped with the sealed door of personnel's access aggregate of easy operation through the pivot.

Description

Technical Field

[0001] This utility model relates to the field of highway engineering material testing and inspection technology, and in particular to a water washing and screening test device for highway testing and inspection raw materials. Background Technology

[0002] In the testing and inspection of materials for highway engineering, the mud content and mud lump content of aggregates are key indicators affecting the quality of the project. Currently, the testing of these indicators mainly relies on the water washing method in the "Specifications for Testing Aggregates in Highway Engineering". The core steps are: repeatedly stirring and washing a certain mass of dried aggregate with water, pouring the suspension mixed with fine powder into a sieve, washing until the water is clear, and finally collecting the aggregate on the sieve and in the container, drying and weighing it to calculate the mud content.

[0003] Reference publication number: CN220804661U. This utility model belongs to the technical field of engineering testing equipment, and in particular to a water washing and screening test device for raw materials in highway engineering testing. It includes a screening box, a connecting block at the top of the screening box, a rotating rod running through the connecting block, a push plate at the top of the rotating rod, a guide groove on the surface of the rotating rod, and a guide pin running through the side of the connecting block. This utility model, by pressing the push plate, causes the rotating rod to move downwards. Through the connection of the guide groove and the guide pin, the rotating rod rotates half a revolution, causing the first and second screen plates to reciprocate, increasing the fluidity of the cleaning liquid and achieving better cleaning and screening efficiency and a more thorough cleaning and screening effect. The cleaning liquid is discharged from the outlet pipe, and the filter screen initially filters out the mud and sand in the cleaning liquid. Then, the filter cotton filters out the finer mud and sand. Finally, the valve is opened to discharge the filtered cleaning liquid, achieving the effect of self-processing the cleaned liquid and protecting the environment.

[0004] Although the above-mentioned device can filter out mud and sand impurities in the cleaning liquid to reduce pollution discharge by using filter screens and filter cotton, filter screens and filter cotton are static and passive filter media. When filtering sewage rich in mud and powder, mud and sand will quickly accumulate on its surface and inside, causing the filter channel to be blocked. This not only causes poor drainage and directly affects the continuity of screening tests, but also means that frequent shutdowns are required for manual disassembly, cleaning or replacement of filter media. Utility Model Content

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0007] A test device for washing and screening raw materials for highway testing includes a processing tank. A first motor is installed above the processing tank. The output end of the first motor passes through the processing tank and is fixedly connected to a shaft. Screen plates are installed above and below the surface of the shaft. A sealed door for easy access to the aggregate is opened on the surface of the processing tank through a rotating shaft.

[0008] A filter assembly is disposed inside the lower part of the processing tank;

[0009] The filtration assembly includes a separation chamber located at the bottom of the processing tank, with a filter screen inside the separation chamber and a scraper on the surface of the filter screen.

[0010] As a preferred embodiment of the water washing and screening test device for highway test raw materials described in this utility model, the filter assembly further includes a connecting frame fixed to the inner wall of the separation box, and the upper end of the connecting frame is fixedly connected to the end of the shaft.

[0011] As a preferred embodiment of the water washing and screening test device for highway test raw materials described in this utility model, the filter assembly further includes a second motor disposed below the separation box. The output end of the second motor extends into the separation box and is fixedly connected to the filter screen. The filter screen rotates synchronously with the separation box via the motor.

[0012] As a preferred embodiment of the water washing and screening test device for highway test raw materials described in this utility model, a guide rail is provided on the surface of the filter screen near the center, and the scraper is embedded in the surface of the guide rail.

[0013] As a preferred embodiment of the water washing and screening test device for highway test raw materials described in this utility model, the separation box has a discharge hole on its side, the discharge hole is elliptical, and a blocking block fixed to the end of the scraper is provided in the discharge hole. The length of the discharge hole is equal to the sum of the diameters of the three blocking blocks.

[0014] As a preferred embodiment of the water washing and screening test device for highway test raw materials described in this utility model, a magnetic ring is fixedly connected to the surface of the filter screen away from the center, and the magnetic ring is magnetically connected to the scraper.

[0015] As a preferred embodiment of the water washing and screening test device for highway test raw materials described in this utility model, the filter screen is generally designed in a conical shape, and the angle of the scraper is consistent with the cross-sectional angle of the filter screen.

[0016] As a preferred embodiment of the water washing and screening test device for highway test raw materials described in this utility model, a liquid channel is provided in the lower inner part of the separation box, and the liquid channel is a ring design.

[0017] As a preferred embodiment of the water washing and screening test device for highway test raw materials described in this utility model, a guide cover is fixedly connected to the lower part of the lower sieve plate. The guide cover has an inverted flat-topped conical design and is used to guide the liquid in a concentrated manner.

[0018] In a preferred embodiment of the water washing and screening test device for highway test raw materials described in this utility model, the lower end of the guide cover extends into the separation box.

[0019] The beneficial effects of this utility model are as follows: This utility model drives the separation box and its internal filter screen to rotate continuously by the first motor, which can use centrifugal force to process the cleaning liquid and the mud and sand falling into the separation box into separate sections, so that the mud and sand can be thrown to the edge of the screen plate and reduce the phenomenon of large-area mud and sand deposition; after screening, the filter screen is driven to rotate by the second motor, which can scrape off the mud and sand on its surface and at the edge by the scraper above it and discharge it outward through the discharge hole, achieving the effect of self-cleaning. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0021] Figure 1 This is a structural diagram of the raw material washing and screening test device for highway testing.

[0022] Figure 2 This is a diagram of the internal structure of the processing tank in a water washing and screening test device for highway testing raw materials.

[0023] Figure 3 This is a structural diagram of the filter assembly of a water washing and screening test device for highway testing raw materials.

[0024] Figure 4 This is a structural diagram of the filter screen and scraper of the raw material washing and screening test device for highway testing.

[0025] Labels in the diagram: 100, processing tank; 110, sealing door; 120, first motor; 130, sieve plate; 200, filter assembly; 210, separation box; 211, filter screen; 212, connecting frame; 220, second motor; 221, discharge port; 222, magnetic ring; 223, guide rail; 224, scraper; 225, blockage block. Detailed Implementation

[0026] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0027] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0029] Example 1:

[0030] Reference Figures 1-4 This is the first embodiment of the present invention. This embodiment provides a test device for washing and screening raw materials for highway testing. It includes a processing tank 100. A first motor 120 is arranged above the processing tank 100. The output end of the first motor 120 passes through the processing tank 100 and is fixedly connected to a shaft. Screen plates 130 are arranged above and below the surface of the shaft. A sealed door 110 for easy access to the aggregate is opened on the surface of the processing tank 100 through a rotating shaft.

[0031] Filter assembly 200 is disposed inside the lower part of the treatment tank 100;

[0032] When performing raw material washing and screening operations, a certain amount of dry aggregate is first placed in the screen plate 130, and the washing water is put into the treatment tank 100. After the device is started, the first motor 120 will drive the screen plate 130 to rotate through the shaft. The aggregate in the screen plate 130 is in full contact with the cleaning water, which can separate the mud powder and impurities attached to the surface of the aggregate to form a mud-water mixture.

[0033] The filter assembly 200 includes a separation box 210 disposed below the processing tank 100, a filter screen 211 disposed inside the separation box 210, and a scraper 224 disposed on the surface of the filter screen 211.

[0034] Example 2:

[0035] Reference Figures 1-3 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0036] Specifically, the filter assembly 200 also includes a connecting frame 212 fixed to the inner wall of the separation box 210, with the upper end of the connecting frame 212 fixedly connected to the end of the shaft.

[0037] In order to separate the mud and sand from the water in the mud-water mixture and ensure the discharge standards, the connecting frame 212 designed above can be used to rotate the filter screen 211 inside the separation box 210 when the first motor 120 is turned on and the material in the screen plate 130 is in full contact with the cleaning liquid through the shaft. As a result, the cleaning liquid falling into the separation box 210 comes into contact with the filter screen 211, and the filter screen 211 can separate the mud and sand and water inside it by centrifugal force.

[0038] Specifically, the filter screen 211 has an overall conical design, and the angle of the scraper 224 is consistent with the cross-sectional angle of the filter screen 211.

[0039] The above design increases the effective filtration area of ​​filter screen 211. At the same time, under the action of centrifugal force, the sediment can move more smoothly along the conical surface to the side wall and is less likely to remain on the surface of filter screen 211, thus affecting subsequent filtration operations.

[0040] Specifically, a liquid channel is provided at the lower inner part of the separation box 210, and the liquid channel has a ring-shaped design.

[0041] The clean liquid filtered by filter screen 211 is thrown to the edge of separation tank 210 under centrifugal force and then flows into this annular channel. The bottom of the treatment tank 100 is connected to a drain pipe, which can orderly export or collect the clean water, thus realizing efficient solid-liquid separation and smooth discharge of clean liquid.

[0042] Specifically, a guide cover is fixedly connected to the lower part of the sieve plate 130. The guide cover has an inverted flat-topped conical design and is used to guide the liquid in a concentrated manner.

[0043] The guide hood is an inverted flat-topped cone shape, with its large diameter facing upwards to catch all liquids and fine particles falling from the screen plate 130; its small diameter faces downwards to form an outlet. This structure can concentrate and guide sewage to a specific area of ​​the filter assembly 200 below, avoiding liquid splashing everywhere and ensuring that all sewage to be treated can be filtered by the filter screen 211.

[0044] Specifically, the lower end of the guide cover extends into the separation box 210.

[0045] The above design allows the cleaning fluid passing through the sieve plate 130 to be concentrated and guided into the separation tank 210.

[0046] Example 3:

[0047] Reference Figures 3-4 This is the third embodiment of the present invention, which is based on the first two embodiments.

[0048] Specifically, the filter assembly 200 also includes a second motor 220 disposed below the separation box 210. The output end of the second motor 220 extends into the separation box 210 and is fixedly connected to the filter screen 211. The filter screen 211 rotates synchronously with the separation box 210 through the motor.

[0049] After the cleaning solution is filtered, the second motor 220 is turned on. The output end of the second motor 220 drives the filter screen 211 to rotate through the shaft. Since the scraper 224 is positioned by the cooperation of the magnetic ring 222 and the guide rail 223, when the filter screen 211 rotates, the scraper 224 can scrape the mud and sand on the surface of the filter screen 211 and guide it to the discharge hole 221 through the inclination angle of the conical filter screen 211 for discharge.

[0050] It is worth noting that the separator 210 is driven to revolve by the first motor 120, while the filter screen 211 is driven to rotate by the second motor 220, and the two can form relative motion.

[0051] Specifically, a guide rail 223 is provided on the surface of the filter screen 211 near the center, and a scraper 224 is embedded in the surface of the guide rail 223.

[0052] With the guide rail 223 designed above, the scraper 224 can be kept in the initial position and will not revolve with the filter screen 211 when the filter screen 211 rotates.

[0053] Specifically, the side of the separation box 210 is provided with a discharge hole 221, which is elliptical in shape. A blocking block 225 fixed to the end of the scraper 224 is provided inside the discharge hole 221. The length of the discharge hole 221 is equal to the sum of the diameters of the three blocking blocks 225.

[0054] When the scraper 224 is in its initial position, the blocking block 225 is exactly in the middle of the discharge hole 221. The end of the scraper 224 can completely block the discharge hole 221 to prevent liquid leakage. The length of the discharge hole 221 is carefully designed to be equal to the sum of the diameters of the three blocking blocks 225. This design means that when the filter screen 211 starts to rotate, the magnetic ring 222 will drive the scraper 224 to move slightly. The blocking block 225 at the end of the scraper 224 will rotate clockwise or counterclockwise with the rotation direction of the filter screen 211 and come into contact with the side wall of the discharge hole 221. As a result, the discharge hole 221 on the opposite side will be exposed. At this time, the movement direction of the filter screen 211 is opposite to that of the scraper 224. The impurities scraped off by the scraper 224 can be discharged out through the opened discharge hole 221, avoiding a large amount of liquid leakage caused by a large opening and closing at one time.

[0055] Specifically, a magnetic ring 222 is fixedly connected to the surface of the filter screen 211 away from the center, and the magnetic ring 222 is magnetically connected to the scraper 224.

[0056] With the magnetic ring 222 designed above, the magnetic ring 222 is magnetically connected to the scraper 224. When the filter screen 211 starts to rotate, the magnetic ring 222 will drive the scraper 224 to move. When the blockage block 225 at the end of the scraper 224 contacts the side wall of the discharge hole 221, the scraper 224 can no longer follow the rotation of the filter screen 211 and stay there. At this time, the magnetic force between the magnetic ring 222 and the scraper 224 still exists, so it can make the scraper 224 adhere to the surface of the filter screen 211, so that it forms a tight fit with the filter screen 211.

[0057] After the mud and sand are cleared, the second motor 220 drives the filter screen 211 to reverse slightly. At this time, the blockage block 225 at the end of the scraper 224 regains its movable space and returns to the initial position through the magnetic ring 222 following the filter screen 211, thus re-sealing the discharge hole 221.

[0058] After washing, remove the washed aggregate from the sieve and container, dry it, weigh it, and the mud content index can be calculated.

[0059] During use, the first motor 120 drives the separation box 210 and its internal filter screen 211 to rotate continuously, which can separate the cleaning liquid and the mud and sand falling into the separation box 210 into sections using centrifugal force, so that the mud and sand can be thrown to the edge of the screen plate 130 and reduce the phenomenon of large-area mud and sand deposition. After screening, the second motor 220 drives the filter screen 211 to rotate, which allows the scraper 224 above it to scrape off the mud and sand on its surface and at the edge and discharge it out through the discharge hole 221, achieving a self-cleaning effect.

[0060] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A test apparatus for washing and screening raw materials for highway testing, comprising a processing tank (100), characterized in that: A first motor (120) is provided above the processing tank (100). The output end of the first motor (120) passes through the processing tank (100) and is fixedly connected to a shaft. Screen plates (130) are provided above and below the surface of the shaft. A sealed door (110) is provided on the surface of the processing tank (100) through a rotating shaft to facilitate personnel to access the aggregate. A filter assembly (200) is disposed inside the lower part of the processing tank (100); The filter assembly (200) includes a separation box (210) disposed below the processing tank (100), and a filter screen (211) is disposed inside the separation box (210), and a scraper (224) is disposed on the surface of the filter screen (211).

2. The test apparatus for washing and screening raw materials for highway testing as described in claim 1, characterized in that: The filter assembly (200) also includes a connecting frame (212) fixed to the inner wall of the separation box (210), the upper end of the connecting frame (212) being fixedly connected to the end of the shaft.

3. The test apparatus for washing and screening raw materials for highway testing as described in claim 1, characterized in that: The filter assembly (200) also includes a second motor (220) disposed below the separation box (210). The output end of the second motor (220) extends into the separation box (210) and is fixedly connected to the filter screen (211). The filter screen (211) rotates synchronously with the separation box (210) through the motor.

4. The test apparatus for washing and screening raw materials for highway testing as described in claim 1, characterized in that: The filter screen (211) has a guide rail (223) on its surface and near the center, and the scraper (224) is embedded in the surface of the guide rail (223).

5. The test apparatus for washing and screening raw materials for highway testing as described in claim 1, characterized in that: The separation box (210) has a discharge hole (221) on its side. The discharge hole (221) is elliptical. A blocking block (225) fixed to the end of the scraper (224) is provided in the discharge hole (221). The length of the discharge hole (221) is equal to the sum of the diameters of the three blocking blocks (225).

6. The test apparatus for washing and screening raw materials for highway testing as described in claim 1, characterized in that: A magnetic ring (222) is fixedly connected to the surface of the filter screen (211) away from the center, and the magnetic ring (222) is magnetically connected to the scraper (224).

7. The test apparatus for washing and screening raw materials for highway testing as described in claim 1, characterized in that: The filter screen (211) is generally tapered, and the angle of the scraper (224) is consistent with the cross-sectional angle of the filter screen (211).

8. The test apparatus for washing and screening raw materials for highway testing as described in claim 1, characterized in that: The lower inner part of the separation box (210) is provided with a liquid channel, which is a ring-shaped design.

9. The test apparatus for washing and screening raw materials for highway testing as described in claim 1, characterized in that: A guide cover is fixedly connected to the lower part of the sieve plate (130). The guide cover has an inverted flat-top cone design and is used to guide the liquid in a concentrated manner.

10. The test apparatus for washing and screening raw materials for highway testing as described in claim 9, characterized in that: The lower end of the guide cover extends into the separation box (210).

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