A lightweight aggregate pre-wetting device for concrete production

Abstract

The utility model discloses a lightweight aggregate pre-wetting device for concrete production, which relates to the technical field of lightweight aggregate pre-wetting, and comprises a water tank and a support frame, wherein the support frame is located above the water tank, and four corners of the bottom surface of the support frame are fixedly connected with support telescopic rods, and the lower end of the support telescopic rod is fixedly connected to the inner bottom wall of the water tank, and the left and right ends of the support frame are rotatably connected with transmission wheels, and the two transmission wheels are driven by two conveyor belts, and the two conveyor belts are located between the four support telescopic rods. A plurality of hollow water spraying struts are arranged between the two conveyor belts, and the front and rear ends of the hollow water spraying struts are respectively fixed and penetrate through the sides of the two conveyor belts close to each other. The lightweight aggregate pre-wetting device for concrete production, by arranging a concave block, a rotating push plate, a bar box and a hollow water spraying strut, the lightweight aggregate on the hollow water spraying strut is separated from the hollow water spraying strut under inertia, so that the hollow water spraying strut can spray water on the part below the lightweight aggregate, and the lightweight aggregate is fully pre-wetted.

Description

Technical Field

[0001] The utility model relates to the technical field of lightweight aggregate pre-wetting, in particular to a lightweight aggregate pre-wetting device for concrete production. Background Art

[0002] The so-called lightweight aggregate is an aggregate used to reduce the mass of concrete and improve thermal effects. Its apparent density is lower than that of ordinary aggregate. Artificial lightweight aggregate is also called ceramsite. Lightweight aggregate concrete has the characteristics of light weight, high strength, heat preservation and fire resistance, and has good deformation performance, low elastic modulus, and generally large shrinkage and creep.

[0003] Lightweight aggregate is in a dry state, and its surface and interior usually contain a large number of micropores. Therefore, in the preparation process of lightweight aggregate concrete, the porous lightweight aggregate needs to be pre-wetted. In the prior art, in order to increase the pre-wetting speed, the lightweight aggregate is generally transported by a conveyor belt, and the moving lightweight aggregate passes over the sprinkler structure, and the lightweight aggregate is pre-wetted by sprinkling water. However, the contact part between the lightweight aggregate and the conveyor belt cannot be directly in contact with the sprayed water, which will cause insufficient pre-wetting of the lightweight aggregate. To this end, we propose a lightweight aggregate pre-wetting device for concrete production. Utility Model Content

[0004] The utility model aims to provide a lightweight aggregate pre-wetting device for concrete production to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a lightweight aggregate pre-wetting device for concrete production, comprising a water tank and a support frame, wherein the support frame is located above the water tank, and the four corners of the bottom surface of the support frame are fixedly connected with supporting telescopic rods, and the lower end of the supporting telescopic rod is fixedly connected to the inner bottom wall of the water tank, and the left and right ends of the support frame are rotatably connected with transmission wheels, and the two transmission wheels are driven by two conveyor belts, and the two conveyor belts are located between the four supporting telescopic rods. A plurality of hollow water spraying struts are arranged between the two conveyor belts, and the front and rear ends of the hollow water spraying struts are respectively fixed and penetrate through the sides of the two conveyor belts close to each other, and the front side of the support frame is fixedly connected There is a box, the rear end of the box is slidably sleeved on the outer surface of the conveyor belt located in the front, the upper surface of the box is fixedly plugged with a vertical box connected to the interior, the front of the vertical box is fixedly connected with a bent pipe, the front of the support frame rotates through a central axis, the central axis and the outer surface of the transmission wheel located on the left are transmitted through a speed increase transmission box, the front and rear ends of the central axis are fixedly sleeved with a rotating push plate, a concave block is provided under the rotating push plate, the concave block is fixedly connected to the upper surface of the water tank, a double-headed water supply pipe is fixedly connected to the front of the water tank, the lower end of the bent pipe is connected to the double-headed water supply pipe, the other upper end of the double-headed water supply pipe is fixedly connected to a spray plate, and the spray plate is located above the two conveyor belts.

[0006] Preferably, a short tube is fixedly inserted on the bottom surface of the bar box, a staggered tube is slidably inserted inside the short tube, the upper end of the staggered tube slides through the interior of the bar box, the vertical box is slidably sleeved on the outer surface of the staggered tube, an end of the staggered tube located inside the vertical box is provided with a water inlet groove, and an end of the staggered tube located inside the short tube is provided with a water outlet groove.

[0007] Preferably, one end of the offset pipe located above the vertical box is fixedly connected to a double-headed counterweight frame, and the vertical box is slidably inserted between the left and right ends of the double-headed counterweight frame.

[0008] Preferably, an upper magnetic ring is fixedly connected to the inner top wall of the vertical box, the offset tube is slidably inserted into the interior of the upper magnetic ring, a lower magnetic ring is arranged below the upper magnetic ring, the lower magnetic ring is fixedly sleeved on the outer surface of the offset tube, and the lower magnetic ring is located above the water inlet trough.

[0009] Preferably, a ramp plate is fixedly connected to the left side of the water tank, the ramp plate is lower on the left and higher on the right, a motor is fixedly installed on the front of the support frame, and the output end of the motor is fixedly connected to the front end of the transmission wheel on the left.

[0010] Preferably, the upper surface of the concave block is a semi-elliptical concave structure, the major diameter of the concave block is greater than the length of the rotating push plate, and the axis of the central shaft and the elliptical central axis of the concave block are located on the same vertical line.

[0011] Preferably, the central axis is arranged in parallel with the two transmission wheels, and the two transmission wheels are symmetrically distributed about the axis of the central axis.

[0012] Preferably, the left and right side surfaces of the hollow water spraying support rod are both arc-shaped ends, and the side of the hollow water spraying support rod away from the central axis is a plurality of through-hole structures.

[0013] Preferably, the axis of the hollow water spraying support rod is arranged parallel to the axis of the transmission wheel, a plurality of hollow water spraying support rods are evenly distributed between the two conveyor belts, and two adjacent hollow water spraying support rods are tangent to each other.

[0014] Preferably, one end of the rotating push plate away from the central axis is rotatably connected to a roller, the roller is in rolling contact with the upper surface of the concave block, and the two rotating push plates are arranged in parallel.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The utility model arranges a concave block, a rotating push plate, a bar box and a hollow water spraying support rod. A double-headed water supply pipe supplies water to the bent pipe and the spraying plate respectively. The spraying plate sprays water from above, and the bent pipe supplies water to the bar box through the vertical box. When the front end of the hollow water spraying support rod rotates to be connected with the bar box, water is sprayed upward. When the rotating push plate rotates, it pushes the support frame upward by contacting with the upper surface of the concave block. After the concave block is separated from the rotating push plate, the support frame is reset downward. The light aggregate on the hollow water spraying support rod is separated from the hollow water spraying support rod under inertia, so that the hollow water spraying support rod can spray water on the part below the light aggregate, and the light aggregate is fully pre-wetted.

[0017] The utility model arranges a dislocated pipe, a short pipe, a water outlet trough and a double-head counterweight frame. When the support frame moves upward and then turns to move downward, the dislocated pipe moves upward relative to the short pipe and the bar box under the inertia of the double-head counterweight frame, the water outlet trough moves into the bar box, and the water in the dislocated pipe is filled into the hollow water spraying support rod through the bar box to spray water upward, so that the hollow water spraying support rod can spray water only when the light aggregate separates from the hollow water spraying support rod under inertia, thereby preventing the light aggregate from contacting with the hollow water spraying support rod when the water is sprayed, and the water flow can only contact the contact point between the light aggregate and the spray hole, while the rest of the parts cannot contact with water, resulting in water waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the connection between the supporting telescopic rod and the water tank of the utility model;

[0020] Figure 3 It is a schematic diagram of the partial structure of the utility model;

[0021] Figure 4 This is a schematic diagram of the connection between the conveyor belt and the hollow water spray support rod of the utility model;

[0022] Figure 5 This is a schematic diagram of the internal structure of the utility model box;

[0023] Figure 6 It is a schematic diagram of the connection between the central axis of the structure of the utility model and the rotating push plate.

[0024] In the figure: 1-water tank; 2-support frame; 3-support telescopic rod; 4-transmission wheel; 5-hollow water spray support rod; 6-conveyor belt; 7-bar box; 8-vertical box; 9-central axis; 10-speed transmission box; 11-rotating push plate; 12-concave block; 13-double-head water supply pipe; 14-bend pipe; 15-spraying plate; 16-short pipe; 17-water inlet trough; 18-water outlet trough; 19-offset pipe; 20-double-head counterweight frame; 21-upper magnetic ring; 22-lower magnetic ring; 23-ramp plate; 24-motor; 25-roller. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-6 The utility model provides a technical solution: a lightweight aggregate pre-wetting device for concrete production, comprising a water tank 1 and a support frame 2, the support frame 2 is located above the water tank 1, and the four corners of the bottom surface of the support frame 2 are fixedly connected with supporting telescopic rods 3, and the lower end of the supporting telescopic rod 3 is fixedly connected to the inner bottom wall of the water tank 1. The left and right ends of the support frame 2 are rotatably connected with transmission wheels 4, and the two transmission wheels 4 are driven by two conveyor belts 6. The two conveyor belts 6 are located between the four supporting telescopic rods 3. A plurality of hollow water spraying struts 5 are arranged between the two conveyor belts 6, and the left and right side surfaces of the hollow water spraying struts 5 are both arc-shaped ends. The side of the hollow water spraying struts 5 away from the central axis 9 is a plurality of through-hole structures. The lightweight aggregate is placed on the hollow water spraying struts 5 is transported above the water tank 1, the axis of the hollow water spraying support rod 5 is arranged parallel to the axis of the driving wheel 4, and multiple hollow water spraying support rods 5 are evenly distributed between the two conveyor belts 6. Two adjacent hollow water spraying support rods 5 are tangent to each other, which can prevent the light aggregate from falling to the inner ring side of the conveyor belt 6. The front and rear ends of the hollow water spraying support rod 5 are respectively fixed to penetrate the side of the two conveyor belts 6 close to each other. A ramp plate 23 is fixedly connected to the left side of the water tank 1, and the ramp plate 23 is set lower on the left and higher on the right. A motor 24 is fixedly installed on the front side of the support frame 2, and the output end of the motor 24 is fixedly connected to the front end of the driving wheel 4 on the left. The ramp plate 23 can drain the light aggregate transported on the left side to the outside of the water tank 1, effectively preventing the light aggregate from being transferred into the water tank 1.

[0027] A bar box 7 is fixedly connected to the front of the support frame 2, and the rear end of the bar box 7 is slidably sleeved on the outer surface of the conveyor belt 6 located in the front, and a vertical box 8 connected with the interior thereof is fixedly inserted on the upper surface of the bar box 7, and a short tube 16 is fixedly inserted on the bottom surface of the bar box 7, and a dislocation tube 19 is slidably inserted inside the short tube 16, and the upper end of the dislocation tube 19 slides through the interior of the bar box 7, and the vertical box 8 is slidably sleeved on the outer surface of the dislocation tube 19, and a water inlet trough 17 is provided at one end of the dislocation tube 19 located inside the vertical box 8, and a water outlet trough 18 is provided at one end of the dislocation tube 19 located inside the short tube 16, and a double-headed counterweight frame 20 is fixedly connected to one end of the dislocation tube 19 located above the vertical box 8, and the vertical box 8 is slidably inserted between the left and right ends of the double-headed counterweight frame 20. When the support frame 2 is stationary or moves upward, the dislocation tube 19 causes the water outlet trough 18 to be located inside the short tube 16 under gravity and inertia, so that the dislocation tube 19 The water in the dislocation pipe 19 will not enter the box 7 to supply water to the hollow water spraying support rod 5. The double-headed counterweight frame 20 increases the gravity and inertia of the dislocation pipe 19. The inner top wall of the vertical box 8 is fixedly connected with an upper magnetic ring 21. The dislocation pipe 19 is slidably inserted into the interior of the upper magnetic ring 21. A lower magnetic ring 22 is arranged below the upper magnetic ring 21. The lower magnetic ring 22 is fixedly sleeved on the outer surface of the dislocation pipe 19. The lower magnetic ring 22 is located above the water inlet trough 17. When the support frame 2 moves upward and then turns downward, the dislocation pipe 19 moves upward relative to the box 7 under the inertia belt of itself and the double-headed counterweight frame 20, so that the upper magnetic ring 21 and the lower magnetic ring 22 are in contact and adsorbed, driving the water outlet trough 18 to move into the box 7, supplying water to the hollow water spraying support rod 5 so that it sprays water upward. At the same time, the lightweight aggregate is separated from the hollow water spraying support rod 5 under inertia, so that the hollow water spraying support rod 5 can spray water on the bottom surface of the lightweight aggregate.

[0028] A curved pipe 14 is fixedly connected to the front of the vertical box 8, and a central shaft 9 is rotated through the front of the support frame 2. The central shaft 9 and the outer surface of the driving wheel 4 located on the left are transmitted through an increasing speed transmission box 10. The increasing speed transmission box 10 accelerates the rotation speed input by the driving wheel 4 to increase the rotation speed of the central shaft 9. The front and rear ends of the central shaft 9 are fixedly sleeved with a rotating push plate 11, and a concave block 12 is arranged below the rotating push plate 11. The concave block 12 is fixedly connected to the upper surface of the water tank 1, and a double-headed water supply pipe 13 is fixedly connected to the front of the water tank 1. The lower end of the double-headed water supply pipe 13 is connected to the water supply structure, and the lower end of the curved pipe 14 is connected to the double-headed water supply pipe 13. The other upper end of the double-headed water supply pipe 13 is fixedly connected to a spray plate 15. The double-headed water supply pipe 13 can supply water to the curved pipe 14 and the spray plate 15, and the spray plate 15 can supply water to the upper surface of the lightweight aggregate. Partial watering, the spray plate 15 is located above the two conveyor belts 6, the upper surface of the concave block 12 is a semi-elliptical concave structure, the major diameter of the concave block 12 is greater than the length of the rotating push plate 11, the axis of the central axis 9 and the elliptical central axis of the concave block 12 are located on the same vertical line, and the end of the rotating push plate 11 away from the central axis 9 is rotatably connected to a roller 25, and the roller 25 is in rolling contact with the upper surface of the concave block 12. The two rotating push plates 11 are arranged in parallel, and the roller 25 reduces the resistance between the rotating push plate 11 and the concave block 12 to reduce wear. When the rotating push plate 11 rotates, the rotating push plate 11 contacts the concave block 12 through the roller 25, pushing the support frame 2 to move upward, and when the roller 25 moves out of the bottom end of the concave block 12 and continues to rotate, the support frame 2 moves downward, and the support frame 2 is reciprocated during the rotation of the rotating push plate 11.

[0029] The central shaft 9 is arranged in parallel with the two transmission wheels 4 , and the two transmission wheels 4 are symmetrically distributed about the axis of the central shaft 9 , so that the support frame 2 is evenly stressed.

[0030] Working principle: Start the motor 24 and drive the two conveyor belts 6 through the transmission wheel 4. The double-headed water supply pipe 13 supplies water to the vertical box 8 and the spray plate 15 respectively. The light aggregate is placed on the hollow water spray support rod 5. The conveyor belt 6 transports the light aggregate through the hollow water spray support rod 5. The spray plate 15 sprays water on the upper surface of the light aggregate passing through. The transmission wheel 4 drives the central axis 9 to accelerate the rotation through the speed increase transmission box 10. When the rotating push plate 11 rotates, it contacts with the upper surface of the concave block 12 and pushes the support frame 2 upward. After the concave block 12 is separated from the rotating push plate 11, the support frame 2 is reset downward, driving the transported light aggregate to move up and down. When the support frame 2 is stationary or moves upward, the offset pipe 19 causes the water outlet trough 18 to be located inside the short pipe 16 under gravity and inertia, so that the hollow water spraying support rod 5 does not spray water. When the support frame 2 moves downward, the lightweight aggregate separates from the hollow water spraying support rod 5 under inertia. At the same time, the offset pipe 19 moves upward relative to the short pipe 16 and the bar box 7 under the inertia of the double-head counterweight frame 20, and the water outlet trough 18 moves into the bar box 7. The water in the offset pipe 19 flows into the bar box 7 through the water outlet trough 18, and then supplies water to the hollow water spraying support rod 5, so that the hollow water spraying support rod 5 sprays water to pre-wet the lightweight aggregate separated from the hollow water spraying support rod 5.

[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lightweight aggregate pre-wetting device for concrete production, comprising a water tank (1) and a support frame (2), characterized in that: The support frame (2) is located above the water tank (1), and the four corners of the bottom surface of the support frame (2) are fixedly connected to support telescopic rods (3), and the lower ends of the support telescopic rods (3) are fixedly connected to the inner bottom wall of the water tank (1). The left and right ends of the support frame (2) are rotatably connected to transmission wheels (4), and the two transmission wheels (4) are driven by two conveyor belts (6). The two conveyor belts (6) are located between the four support telescopic rods (3). A plurality of hollow water spraying struts (5) are arranged between the two conveyor belts (6), and the front and rear ends of the hollow water spraying struts (5) are respectively fixed to penetrate the sides of the two conveyor belts (6) that are close to each other. The front of the support frame (2) is fixedly connected to a box (7), and the rear end of the box (7) is slidably sleeved on the outer surface of the conveyor belt (6) located in the front, and the upper surface of the box (7) is fixedly connected to the front of the support frame (2). A vertical box (8) connected to the interior thereof is fixedly inserted on the surface, a curved pipe (14) is fixedly connected to the front of the vertical box (8), a central shaft (9) is rotatably penetrated through the front of the support frame (2), the central shaft (9) and the outer surface of the transmission wheel (4) located on the left are transmitted through a speed increasing transmission box (10), a rotating push plate (11) is fixedly sleeved on both the front and rear ends of the central shaft (9), a concave block (12) is provided below the rotating push plate (11), the concave block (12) is fixedly connected to the upper surface of the water tank (1), a double-headed water supply pipe (13) is fixedly connected to the front of the water tank (1), the lower end of the curved pipe (14) is connected to the double-headed water supply pipe (13), the other upper end of the double-headed water supply pipe (13) is fixedly connected to a spray plate (15), and the spray plate (15) is located above the two conveyor belts (6).

2. A lightweight aggregate pre-wetting device for concrete production according to claim 1, characterized in that: A short tube (16) is fixedly inserted on the bottom surface of the bar box (7), a dislocation tube (19) is slidably inserted inside the short tube (16), the upper end of the dislocation tube (19) slides through the inside of the bar box (7), the vertical box (8) is slidably sleeved on the outer surface of the dislocation tube (19), one end of the dislocation tube (19) located inside the vertical box (8) is provided with a water inlet groove (17), and one end of the dislocation tube (19) located inside the short tube (16) is provided with a water outlet groove (18).

3. A lightweight aggregate pre-wetting device for concrete production according to claim 2, characterized in that: One end of the dislocation pipe (19) located above the vertical box (8) is fixedly connected to a double-headed counterweight frame (20), and the vertical box (8) is slidably inserted between the left and right ends of the double-headed counterweight frame (20).

4. The lightweight aggregate pre-wetting device for concrete production according to claim 2, characterized in that: An upper magnetic ring (21) is fixedly connected to the inner top wall of the vertical box (8), and the offset tube (19) is slidably inserted into the interior of the upper magnetic ring (21). A lower magnetic ring (22) is arranged below the upper magnetic ring (21), and the lower magnetic ring (22) is fixedly sleeved on the outer surface of the offset tube (19). The lower magnetic ring (22) is located above the water inlet trough (17).

5. The lightweight aggregate pre-wetting device for concrete production according to claim 1, characterized in that: A ramp plate (23) is fixedly connected to the left side of the water tank (1), the ramp plate (23) being lower on the left and higher on the right. A motor (24) is fixedly installed on the front side of the support frame (2), and the output end of the motor (24) is fixedly connected to the front end of the transmission wheel (4) located on the left side.

6. The lightweight aggregate pre-wetting device for concrete production according to claim 1, characterized in that: The upper surface of the concave block (12) is a semi-elliptical concave structure, the major diameter of the concave block (12) is greater than the length of the rotating push plate (11), and the axis of the central axis (9) and the elliptical central axis of the concave block (12) are located on the same vertical line.

7. The lightweight aggregate pre-wetting device for concrete production according to claim 1, characterized in that: The central axis (9) is arranged in parallel with the two transmission wheels (4), and the two transmission wheels (4) are symmetrically distributed about the axis of the central axis (9).

8. The lightweight aggregate pre-wetting device for concrete production according to claim 1, characterized in that: The left and right side surfaces of the hollow water spraying support rod (5) are both arc-shaped ends, and the side of the hollow water spraying support rod (5) away from the central axis (9) is a plurality of through-hole structures.

9. The lightweight aggregate pre-wetting device for concrete production according to claim 1, characterized in that: The axis of the hollow water spraying support rod (5) is arranged parallel to the axis of the driving wheel (4); a plurality of hollow water spraying support rods (5) are evenly distributed between the two conveyor belts (6); and two adjacent hollow water spraying support rods (5) are tangent to each other.

10. The lightweight aggregate pre-wetting device for concrete production according to claim 1, characterized in that: One end of the rotating push plate (11) away from the central axis (9) is rotatably connected to a roller (25), the roller (25) is in rolling contact with the upper surface of the concave block (12), and the two rotating push plates (11) are arranged in parallel.

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