Quantitative spraying and stirring device for fine aggregate in saturated surface dry state
By installing a metering sprayer and a stirring rod on the mixing device, the problems of water control and uneven distribution of fine aggregates when they reach a saturated surface-dry state were solved, thus achieving accuracy and efficiency in the experiment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-11
- Publication Date
- 2026-03-24
AI Technical Summary
In existing technologies, it is difficult to accurately control the amount of water and ensure uniform distribution when fine aggregates reach a saturated surface-dry state, leading to inaccurate test results and prolonged testing time.
A quantitative spray mixing device for fine aggregates in a saturated surface-dry state is designed. By setting a quantitative sprayer and a stirring rod above the mixing pot, the water volume can be precisely controlled and evenly distributed. Combined with mechanical stirring, the saturated surface-dry state can be quickly achieved.
It achieves precise control and uniform distribution of water, shortens the test time, ensures the uniformity of fine aggregates, and is suitable for testing the density and water absorption rate of fine aggregates.
Smart Images
Figure CN224024925U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the field of engineering design, specifically is a kind of fine aggregate saturated surface dry state quantitative spray stirring device of auxiliary fine aggregate density and water absorption rate test. BACKGROUND
[0002] T0330-2024 fine aggregate density and water absorption rate test (slump cylinder method) is to take a sample and move into metal tray, spread, handheld hair dryer slowly moves above aggregate particle, evenly blows warm wind to surface, and does not stop to stir, so that aggregate surface moisture is evenly evaporated, until the test reaches saturated surface dry state, then only test is carried out.In actual operation process, since the operation mode of artificial blowing warm wind is used, fine aggregate is easily blown dry, and fine aggregate is stirred again until saturated surface dry state is reached, but when water is added again, not only the amount of water added is not easy to control accurately, but also the distribution of added water in aggregate is uneven, causing uneven dry and wet aggregate, and direct test cannot be carried out. SUMMARY
[0003] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art, provide a fine aggregate saturated surface dry state quantitative spray stirring device, move the aggregate that is tested dry into the stirring pot, set quantitative sprayer above the stirring pot, which can not only accurately control the amount of water added each time, but also implement atomization injection, evenly dispersed in aggregate under the assistance of mechanical stirring, so that aggregate reaches saturated surface dry state faster, and subsequent test is facilitated.
[0004] To solve the above technical problems, the utility model provides a fine aggregate saturated surface dry state quantitative spray stirring device, which comprises a base, a stand column is fixed on the base, a horizontal rod is movably connected to the top end of the stand column, one end of the horizontal rod can rotate around the top end of the stand column, a quantitative sprayer and a stirring rod are arranged on the other end of the horizontal rod, and a stirrer is fixed to the lower end of the stirring rod.
[0005] As a further description of the above technical solution:
[0006] A water tank is further arranged in the horizontal rod, and the quantitative sprayer is connected with the water tank to supply water for the quantitative sprayer.
[0007] As a further description of the above technical solution:
[0008] A water inlet is arranged on the horizontal rod, the water inlet is communicated with the water tank, and a cover is arranged on the water inlet.
[0009] As a further description of the above technical solution:
[0010] A spray controller and a stirring control switch are further arranged on the horizontal rod, the spray controller is used to control the opening and closing of the quantitative sprayer and the spray flow, and the stirring control switch is used to control the opening and closing of the stirring and the stirring speed.
[0011] As a further description of the above technical solutions:
[0012] The base is further provided with a positioning hole for stably placing the stirring pot and fixing the position of the stirring pot.
[0013] In summary, due to the adoption of the above technical solutions, the present application has the following beneficial effects:
[0014] The fine aggregate saturated surface dry state quantitative spray stirring device can control the water addition amount (600*1% = 6g) each time, implement atomization injection, and implement mechanical stirring, so as to achieve the purpose of accurate control of water addition amount and uniform distribution of water in aggregate, and thus the saturated surface dry state of fine aggregate is easily found. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 is a structural schematic view of the fine aggregate saturated surface dry state quantitative spray stirring device.
[0016] LEGEND:
[0017] 1, base; 11, positioning hole; 2, stand; 21, rotating shaft; 3, cross bar; 31, water tank; 32, spray controller; 33, stirring controller; 4, quantitative sprayer; 5, stirrer. DETAILED DESCRIPTION
[0018] The present application will be further described below in combination with the drawings and specific embodiments.
[0019] The fine aggregate saturated surface dry state quantitative spray stirring device, as shown in Figure 1 Fig. 1, comprises a base 1, the base 1 is provided with a positioning hole 11 for installing and fixing the position of the stirring pot, a stand 2 is fixed on the base 1, a cross bar 3 is fixed on the top end of the stand 2 through a rotating shaft 21, a quantitative sprayer 4 and a stirrer 5 are arranged on the other end of the cross bar 3, the cross bar 3 rotates up and down around the rotating shaft 21, so as to adjust the position of the quantitative sprayer 4 and the stirrer 5 up and down, so that the quantitative sprayer 4 is located at the opening of the stirring pot during spray stirring, at the same time, the stirrer 5 is inserted into the stirring pot, and the stirring pot is convenient to take away after spray stirring.
[0020] The water tank 31 and a water inlet 32 are further arranged in the cross bar 3, the quantitative sprayer 4 is connected with the water outlet of the water tank 31, and a cover is arranged on the water inlet 32, since the water addition amount for the aggregate is generally small (600*1% = 6g), only a water tank 31 with a proper size is arranged on the cross bar 3, which can meet the water addition amount for the aggregate.
[0021] The spray controller 33 and the stirring controller 34 are further arranged on the cross bar 3, the spray controller 33 and the stirring controller 34 are both in the form of rotary button, that is, the opening and closing are controlled by pressing, and the flow or speed is controlled by twisting.
[0022] In use, the aggregate that needs to be watered is transferred into the stirring pot, placed into the positioning hole 11 of the base 1, then the crossbar 3 is adjusted so that the stirring blades of the stirrer 5 extend into the stirring pot, at the same time the quantitative sprayer 4 is located at the opening of the stirring pot, the spray controller 33 is twisted to select the button, the amount of spraying is adjusted, and at the same time the quantitative sprayer 4 and the stirrer are turned on to start quantitative spraying and mechanical stirring; after uniform stirring, the quantitative sprayer 4 and the stirrer are turned off, the crossbar 3 is lifted, and the stirring pot is removed, and the subsequent test can be carried out. The fine aggregate saturated surface dry state quantitative spraying and stirring device of the embodiment can accurately control the amount of water and make the uniform distribution of water in the aggregate, so that the saturated surface dry state of the fine aggregate is easily found, and the test time is shortened.
[0023] The above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can still be modified, or some technical features can be replaced equivalently; and these modifications or replacements will not make the essence of the corresponding technical solutions deviate from the protection scope of the present application.
Claims
1. Fine aggregate saturated surface dry condition quantitative spraying and stirring device, characterized in that: The utility model relates to a quantitative spraying and stirring device, which comprises a base (1), a stand (2) fixed on the base (1), a crossbar (3) movably connected to the top of the stand (2), a quantitative sprayer (4) and a stirrer (5) arranged at one end of the crossbar (3).
2. The fine aggregate saturated surface dry condition quantitative spraying and mixing device according to claim 1, characterized in that: A water tank (31) is further arranged in the crossbar (3), and the quantitative sprayer (4) is connected with the water tank (31).
3. The fine aggregate saturated surface dry condition quantitative spraying and mixing device according to claim 2, characterized in that: A water inlet (32) is arranged on the crossbar (3) and communicates with the water tank (31).
4. The fine aggregate saturated surface dry condition quantitative spraying and mixing device according to claim 1 or 2, characterized in that: A spraying controller (33) and a stirring controller (34) are further arranged on the crossbar (3).
5. The fine aggregate saturated surface dry condition quantitative spraying and mixing device according to claim 1 or 2, characterized in that: Positioning holes (11) are further arranged on the base (1).