Asphalt concrete gravel material drying roller

Abstract

The utility model discloses an asphalt concrete gravel material drying roller which comprises a fixed rack, a roller body rotationally installed on the fixed rack and a heating box fixedly installed on the fixed rack and arranged outside the roller body in a sleeving mode, and shoveling plates are fixedly connected to the inner wall of the roller body in the circumferential direction at equal intervals. The shoveling plate comprises a vertical fixing plate fixedly connected with the inner wall of the roller body, an inclined connecting plate arranged on the side, away from the inner wall of the roller body, of the vertical fixing plate, and a scattering plate arranged on the side, away from the vertical fixing plate, of the inclined connecting plate. The bending angle of the shoveling plate is increased, so that the rotating angle of gravel materials shoveled by the shoveling plate around the roller body is increased, the gravel materials scattered by the shoveling plate fall onto the material scattering plate at the upper left corner of the rotating shaft, the material scattering plate rotates anticlockwise under increased pressure, and the gravel materials can slide to the corresponding position of the shoveling plate at the lower left corner. The utilization rate of shoveling plates is greatly increased, the contact time of gravel and the roller body is greatly prolonged, and the drying efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to dry equipment technical field, concretely is a kind of asphalt concrete sand and stone material drying drum. BACKGROUND

[0002] The main raw material of asphalt concrete is asphalt and sand and stone material, and asphalt concrete is relatively simple to make, and the asphalt and sand and stone material are fully mixed after being heated, so that the humidity of sand and stone material needs to be ensured within a certain range during the production process, and if the humidity is too large, it will affect the mixing effect of asphalt concrete, therefore, the sand and stone material with high humidity is generally dehumidified by a drying drum.

[0003] The structure of the existing drying drum is relatively similar, and most of them are provided with scoops on the inner wall of the drying drum in the circumferential direction, and the two ends of the drum have a height difference, or the inner wall of the drum is provided with spiral vanes, so as to realize rotary drying and sand and stone material conveying. When the drum rotates, the scoop scoops up the sand and stone material from the bottom of the inner wall of the drum and moves upward along the circumference of the drum. As the drum rotates, the scoop rotates to the top of the drum, and then falls off the scoop. This reciprocating drying is achieved. However, the bending angle of the scoop of the existing drum dryer is mostly relatively small, as shown in the drawings of the specification Figure 7 , the sand and stone material is scooped up by the scoop from the bottom of the inner wall of the drum, and falls off when the scoop rotates less than 180 degrees around the drum. The scoops in the other half of the drum are all empty, and only half of the scoops are used, resulting in low utilization rate of the scoops. At the same time, only half of the area of the side wall of the drum is in contact with the sand and stone material for heating, resulting in waste of energy and affecting the drying efficiency. SUMMARY

[0004] In view of the deficiencies in the prior art, the utility model provides an asphalt concrete sand and stone material drying drum to solve the problem that the bending angle of the scoop inside the existing drum is small, which affects the drying efficiency of the sand and stone material.

[0005] To solve the above technical problems, the utility model provides the following technical scheme:

[0006] An asphalt concrete sand and stone material drying drum includes a fixed frame, a drum body rotatably installed on the fixed frame, and a heating box fixedly installed on the fixed frame and sleeved outside the drum body. The inner wall of the drum body is fixedly connected with scoops at equal intervals in the circumferential direction. The scoop includes a vertical fixed plate fixedly connected with the inner wall of the drum body, an inclined connecting plate provided on the side of the vertical fixed plate away from the inner wall of the drum body, and a material scattering plate on the side of the inclined connecting plate away from the vertical fixed plate.

[0007] The support frame fixedly connected by the inner wall in the drum body is rotationally installed with a rotating shaft, and the surface of the rotating shaft is fixedly connected with a plurality of material blocking plates equidistantly along the circumference, and adjacent two material blocking plates are provided with a blocking plate at the position close to the rotating shaft.

[0008] Preferably, the vertical fixing plate, the inclined connecting plate and the material scattering plate are integrated.

[0009] Preferably, equidistantly arranged on the material scattering plate are material scattering grooves extending to the side away from the inclined connecting plate.

[0010] Preferably, the included angle formed by the vertical fixing plate and the material scattering plate is a right angle, and the included angles between the vertical fixing plate, the material scattering plate and the inclined connecting plate are all °.

[0011] Preferably, the rotating shaft is connected with the support frame through a bearing seat, and the support rods of the support frame are not less than three and are equidistantly arranged along the circumference of the bearing seat.

[0012] Preferably, equidistantly arranged on the side and the surface of the material blocking plate away from the rotating shaft are material leakage grooves.

[0013] Preferably, the blocking plate is an arc-shaped curved plate curved towards the side close to the rotating shaft.

[0014] Preferably, fixedly connected between adjacent two material blocking plates is a reinforcing angle plate.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] The utility model discloses a bending angle of the scoop plate is increased, so that the angle of the scoop plate scooping up the sand and stone material rotating around the drum body is increased, the utilization rate of the scoop plate is improved, the sand and stone material scattered by the scoop plate falls on the material scattering plate at the left upper corner, the material scattering plate is increased under the pressure and rotates counterclockwise, and the sand and stone material will slide to the corresponding position of the scoop plate at the left lower corner, and the utilization rate of the scoop plate is greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the whole structure schematic view of the utility model;

[0018] Figure 2 It is the inside structure side view of the drum body of the utility model;

[0019] Figure 3 It is the side view of the drum body of the utility model;

[0020] Figure 4The utility model discloses a shaft and two vertical direction's material baffle front view of blocking;

[0021] Figure 5 The utility model discloses a copy board front view;

[0022] Figure 6 The utility model discloses a copy board plan view;

[0023] Figure 7 It is the side view of the existing cylinder and copy board.

[0024] In the figure: 1, fixed frame, 2, cylinder body, 3, heating box, 4, copy board, 401, vertical fixed plate, 402, inclined connecting plate, 403, material scattering plate, 404, material scattering groove, 5, support frame, 6, rotating shaft, 7, material baffle, 701, material leakage groove, 8, baffle, 9, bearing seat, 10, reinforcing angle plate. DETAILED DESCRIPTION

[0025] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0026] As Figures 1-6 Indicated, the utility model provides a kind of technical scheme: a bituminous concrete sandstone material drying cylinder, including fixed frame 1, rotating installation on fixed frame 1 cylinder body 2 and fixed installation on fixed frame 1 and set in the heating box 3 of cylinder body 2 outer portion, the inner wall of cylinder body 2 is fixedly connected with copy board 4 along equidistant periphery;

[0027] Copy board 4 includes vertical fixed plate 401 fixedly connected with the inner wall of cylinder body 2, inclined connecting plate 402 setting on the side of vertical fixed plate 401 away from the inner wall of cylinder body 2 and material scattering plate 403 on the side of inclined connecting plate 402 away from vertical fixed plate 401, vertical fixed plate 401, inclined connecting plate 402 and material scattering plate 403 are integrated structure, equidistantly set on material scattering plate 403 material scattering groove 404 extending to the side away from inclined connecting plate 402, the included angle formed by vertical fixed plate 401 and material scattering plate 403 is right angle, the included angle between vertical fixed plate 401 and material scattering plate 403 and inclined connecting plate 402 is all 120 °;

[0028] The support frame 5 fixedly connected by the inner wall inside the drum body 2 is rotationally installed with a rotating shaft 6, the rotating shaft 6 is connected with the support frame 5 through a bearing seat 9, the support rods of the support frame 5 are not less than three and are equidistantly arranged along the circumference of the bearing seat 9, the surface of the rotating shaft 6 is equidistantly fixedly connected with a plurality of material blocking plates 7, the adjacent two material blocking plates 7 are fixedly connected with a reinforcing angle plate 10, the side and surface of the material blocking plate 7 away from the rotating shaft 6 are equidistantly provided with a material leakage groove 701, the position between the adjacent two material blocking plates 7 close to the rotating shaft 6 is provided with a baffle 8, and the baffle 8 is an arc-shaped curved plate with the middle part bending towards the side close to the rotating shaft 6.

[0029] Working principle:

[0030] The scoop plate 4 comprises a vertical fixed plate 401, an inclined connecting plate 402 and a material scattering plate 403, the bending angle is increased, the scoop plate 4 scoops up the sand and gravel from below the inside of the drum body 2 and rotates counterclockwise around the drum body 2, the sand and gravel will be scattered down when the scoop plate 4 rotates to the upper left corner, the sand and gravel scattered by the scoop plate 4 falls on the material scattering plate 403 at the upper left corner of the rotating shaft 6, the material scattering plate 403 is counterclockwise rotated under the pressure, and when the material scattering plate 403 rotates to the lower left corner, the sand and gravel will slide to the corresponding position of the scoop plate 4 at the lower left corner, that is, the scoop plate 4 from the lower left corner to the upper left corner in the counterclockwise direction will scoop up the sand and gravel and rotate counterclockwise, so that the sand and gravel is in full contact with the drum body 2, not only improves the utilization rate of the scoop plate 4, but also increases the time of the sand and gravel directly contacting and drying with the drum body 2, improves the heat energy utilization rate of the drum body 2, and improves the drying efficiency.

[0031] It should be noted that in this text, terms such as "including", "containing" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent to such process, method, article or equipment.

[0032] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. An asphalt concrete sand and gravel drying drum, comprising a fixed frame (1), a drum body (2) rotatably mounted on the fixed frame (1), and a heating box (3) fixedly mounted on the fixed frame (1) and sleeved on the outside of the drum body (2), characterized in that: A lifting plate (4) is fixedly connected to the inner wall of the drum body (2) at equal intervals along the circumferential direction, and the lifting plate (4) comprises a vertical fixing plate (401) fixedly connected to the inner wall of the drum body (2), an inclined connecting plate (402) arranged on the side of the vertical fixing plate (401) facing away from the inner wall of the drum body (2), and a spreading plate (403) on the side of the inclined connecting plate (402) facing away from the vertical fixing plate (401); A rotating shaft (6) is rotatably mounted on a support frame (5) fixedly connected to the inner wall of the drum body (2). A plurality of baffle plates (7) are fixedly connected to the surface of the rotating shaft (6) at equal intervals along the circumferential direction. A baffle plate (8) is provided between two adjacent baffle plates (7) at a position close to the rotating shaft (6).

2. The asphalt concrete sand and gravel drying drum according to claim 1, characterized in that: The vertical fixing plate (401), the inclined connecting plate (402) and the spreading plate (403) are an integrated structure.

3. The asphalt concrete sand and gravel drying drum according to claim 1, characterized in that: The spreading plate (403) is provided with spreading grooves (404) at equal intervals, extending to a side away from the inclined connecting plate (402).

4. The asphalt concrete sand and gravel drying drum according to claim 1, characterized in that: The included angle formed by the vertical fixing plate (401) and the spreading plate (403) is a right angle, and the included angles between the vertical fixing plate (401), the spreading plate (403) and the inclined connecting plate (402) are all 120°.

5. The asphalt concrete sand and gravel drying drum according to claim 1, characterized in that: The rotating shaft (6) is connected to the support frame (5) through the bearing seat (9), and the support frame (5) has no less than three support rods that are equidistantly arranged along the circumference of the bearing seat (9).

6. The asphalt concrete sand and gravel drying drum according to claim 1, characterized in that: The side of the baffle plate (7) facing away from the rotating shaft (6) and the surface thereof are provided with leakage grooves (701) at equal distances along the axial direction.

7. The asphalt concrete sand and gravel drying drum according to claim 1, characterized in that: The baffle (8) is an arc-shaped curved plate with a middle portion that bends toward a side close to the rotating shaft (6).

8. The asphalt concrete sand and gravel drying drum according to claim 1, characterized in that: A reinforcing angle plate (10) is fixedly connected between two adjacent material blocking plates (7).

Images