Discharging device for sand aggregate muck screening

Abstract

The utility model relates to the field of gravel aggregate screening, in particular to a discharging device for gravel aggregate muck screening, which comprises a discharging hopper, the discharging hopper is mounted at the bottom of a muck screening machine, a discharging pipe for discharging is fixedly mounted at the bottom of the discharging hopper, and a discharging pipe for discharging is mounted at the bottom of the discharging hopper. When the discharging device for gravel aggregate muck screening is used, screened soil-containing materials fall into the discharging hopper, concentrated discharging is conducted on the soil-containing materials in the discharging hopper through the concentrating plates, the soil-containing materials are concentrated between the two concentrating plates, and therefore the discharging device can be used for screening gravel aggregate muck. The falling impact of soil-containing materials can be relieved through operation of damping springs, dust generation is further reduced, flying dust generated by falling of the soil-containing materials between the two concentration plates is absorbed through operation of a draught fan, flying dust generated by screening of the muck screening machine is reduced, and after long-time use, the muck screening efficiency is improved. The filter screen can be cleaned through operation of the cleaning device, and the filter screen is prevented from being blocked.

Description

Technical Field

[0001] The utility model relates to the field of sandstone aggregate screening, in particular to a feeding device used for screening sandstone aggregate slag. Background Art

[0002] Sand and gravel aggregates play a good role in construction sites, but they need to be screened and processed before use. The soil-containing materials after screening by the soil removal screen first enter the storage steel silo, and then enter the pre-homogenization pile shed on the clinker production line through the conveyor belt. However, when the existing sand and gravel aggregates are screened, the screened soil-containing materials will be discharged through the bottom of the screening machine. However, a large amount of dust will appear at the discharge port due to the falling gravity of the sand and gravel aggregates, affecting the health of the workers.

[0003] Therefore, it is necessary to provide a new feeding device for screening sand, gravel, aggregate and slag to solve the above technical problems. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a feeding device for screening sand, gravel, aggregate and slag.

[0005] The utility model provides a feeding device for screening sand, gravel, aggregate and slag, comprising:

[0006] A discharge hopper is installed at the bottom of the slag screening machine, and a discharge pipe for discharging materials is fixedly installed at the bottom of the discharge hopper;

[0007] The concentrating plate is symmetrically mounted on the top of the inner wall of the discharge pipe through an axle pin, and the concentrating plate can centrally discharge the discharge material in the discharge hopper;

[0008] The suction hood is symmetrically fixedly installed at the bottom of the inner wall of the discharge pipe, and an air duct is fixedly installed in the middle of the suction hood. The air duct passes through the discharge pipe, and the air duct is connected with the fan. The air duct installed on the fan is connected with the bag dust collector, and a filter is fixedly installed at the air inlet of the air duct;

[0009] The cleaning device is installed at the bottom of the discharge pipe to hit the filter to prevent excessive accumulation of dust on the filter and affect the dust absorption efficiency.

[0010] Preferably, a baffle is fixedly installed at a position on the top of the inner wall of the discharge pipe corresponding to the top of the concentrating plate.

[0011] Preferably, a shock-absorbing spring is fixedly mounted on one side of the concentrating plate, and one end of the shock-absorbing spring is fixedly connected to one side of the concentrating plate.

[0012] Preferably, the cleaning device includes a positioning rod, a movable plate, a positioning groove, a knocking rod, a fixed frame and a motor reciprocating mechanism. Positioning rods are symmetrically fixedly installed on both sides of the bottom end of the discharge pipe, and a movable plate is slidably installed between the two positioning rods at the same end close to the suction hood. Positioning grooves are symmetrically provided at both ends of the movable plate, and the positioning grooves are slidably connected to the positioning rods. The ends of the two movable plates are fixedly arranged, and a knocking rod for hitting the filter is equidistantly fixedly installed on one side of the movable plate corresponding to the position of the filter, a fixed frame is fixedly installed at a position of the discharge pipe corresponding to one end of the movable plate, and a motor reciprocating mechanism for driving the movable plate to reciprocate left and right is fixedly installed in the middle of an end of the fixed frame away from the discharge pipe.

[0013] Preferably, the positioning groove and the positioning rod slide tightly together.

[0014] Preferably, a rubber pad is installed on the surface of the concentrating plate on one side away from the shock absorbing spring.

[0015] Compared with the prior art, the feeding device for screening sand, gravel, aggregate and slag provided by the utility model has the following beneficial effects:

[0016] The utility model provides a feeding device for screening sandstone aggregate and slag soil. When in use, after the sandstone aggregate is screened by the slag screening machine, the screened soil-containing materials will fall into the discharging hopper, and the soil-containing materials in the discharging hopper will be concentrated and discharged through the concentrating plate, and the soil-containing materials will be concentrated between two concentrating plates. The operation of the shock-absorbing spring can slow down the falling impact of the soil-containing materials, thereby further reducing the generation of dust. The operation of the fan can absorb the dust generated by the falling soil-containing materials between the two concentrating plates, thereby reducing the dust generated by the screening of the slag screening machine. After long-term use, the filter screen can be cleaned by the operation of the cleaning device to prevent the filter screen from being blocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the structure of a feeding device for screening sand, gravel, aggregate and slag provided by the utility model;

[0018] Figure 2 for Figure 1 The partial cross-sectional structural schematic diagram shown;

[0019] Figure 3 for Figure 1 The partial cross-sectional diagram of the exploded structure is shown.

[0020] Numbers in the figure: 1, discharge hopper; 2, discharge pipe; 3, centralizing plate; 4, suction hood; 5, air duct; 6, filter; 7, cleaning device; 8, baffle; 9, shock-absorbing spring; 71, positioning rod; 72, moving plate; 73, positioning groove; 74, knocking rod; 75, fixing frame; 76, motor reciprocating mechanism. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0022] The specific implementation of the present utility model is described in detail below in conjunction with specific embodiments.

[0023] See also Figures 1 to 3 The present invention provides a feeding device for screening sand, gravel, aggregate and slag, and the feeding device for screening sand, gravel, aggregate and slag includes:

[0024] A discharge hopper 1 is installed at the bottom of the slag screening machine, and a discharge pipe 2 for discharging materials is fixedly installed at the bottom of the discharge hopper 1;

[0025] The concentrating plate 3 is symmetrically rotated and installed on the top of the inner wall of the discharge pipe 2 through an axle pin. The concentrating plate 3 can concentrate the discharge materials in the discharge hopper 1. The two ends of the concentrating plate 3 are arranged in contact with the inner wall of the discharge pipe 2.

[0026] The suction hood 4 is symmetrically fixedly installed at the bottom of the inner wall of the discharge pipe 2. An air duct 5 is fixedly installed in the middle of the suction hood 4. The air duct 5 passes through the discharge pipe 2. The air duct 5 is connected to the fan. The air duct 5 installed on the fan is connected to the bag dust collector. A filter 6 is fixedly installed at the air inlet of the air duct 5.

[0027] The cleaning device 7 is installed at the bottom of the discharge pipe 2 and can hit the filter screen 6 to prevent excessive accumulation of dust on the filter screen 6 and affect the dust absorption efficiency.

[0028] When the device is in use, after the sand and gravel aggregates are screened by the slag screening machine, the screened soil-containing materials will fall into the discharge hopper 1, and the soil-containing materials in the discharge hopper 1 will be concentrated and discharged through the concentrating plate 3, and the soil-containing materials will be concentrated between the two concentrating plates 3. The dust falling from the soil-containing materials between the two concentrating plates 3 will be absorbed by the operation of the fan, thereby reducing the dust generated by the screening of the slag screening machine. After long-term use, the filter screen 6 can be cleaned by the operation of the cleaning device 7 to prevent the filter screen 6 from being blocked.

[0029] See also Figures 1 to 3 A baffle 8 is fixedly installed at the top of the inner wall of the discharge pipe 2 corresponding to the top of the centralizing plate 3 to prevent the soil-containing material from leaking out from between the inner wall of the discharge pipe 2 and the centralizing plate 3.

[0030] See also Figures 1 to 3A damping spring 9 is fixedly mounted on one side of the concentrating plate 3, and one end of the damping spring 9 is fixedly connected to one side of the concentrating plate 3. The operation of the damping spring 9 can slow down the falling impact of the soil-containing material, thereby further reducing the generation of dust.

[0031] See also Figures 1 to 3 The cleaning device 7 includes a positioning rod 71, a movable plate 72, a positioning groove 73, a knocking rod 74, a fixed frame 75 and a motor reciprocating mechanism 76. The positioning rods 71 ​​are symmetrically fixedly installed on both sides of the bottom end of the discharge pipe 2, and a movable plate 72 is slidably installed between the two positioning rods 71 ​​at the same end close to the suction hood 4. Positioning grooves 73 are symmetrically provided at both ends of the movable plate 72. The positioning grooves 73 are slidably connected to the positioning rods 71. The ends of the two movable plates 72 are fixedly arranged, and a knocking rod 74 for hitting the filter screen 6 is equidistantly fixedly installed on one side of the movable plate 72 corresponding to the position of the filter screen 6. A fixed frame 75 is fixedly installed at the position of the discharge pipe 2 corresponding to one end of the movable plate 72, and a motor reciprocating mechanism 76 for driving the movable plate 72 to reciprocate left and right is fixedly installed in the middle of the end of the fixed frame 75 away from the discharge pipe 2. The motor reciprocating mechanism 76 operates to pull the movable plate 72 back and forth, driving the positioning groove 73 on the movable plate 72 to slide between the two positioning rods 71, and driving the knocking rod 74 to strike the filter 6 back and forth, so as to clean the filter 6 and prevent the filter 6 from being blocked.

[0032] See also Figures 1 to 3 A rubber pad is installed on the surface of the concentrating plate 3 away from the damping spring 9, which can reduce the noise of the falling soil-containing materials.

[0033] When the device is in use, after the sand and gravel aggregates are screened by the slag screening machine, the screened soil-containing materials will fall into the discharge hopper 1, and the soil-containing materials in the discharge hopper 1 will be concentrated and discharged through the concentrating plate 3, and the soil-containing materials will be concentrated between the two concentrating plates 3. At the same time, the operation of the shock-absorbing spring 9 can slow down the falling impact of the soil-containing materials, thereby further reducing the generation of dust. Afterwards, the operation of the fan will absorb the dust collected by the soil-containing materials between the two concentrating plates 3, thereby reducing the dust generated by the screening of the slag screening machine. After long-term use, the moving plate 72 is pulled back and forth through the operation of the motor reciprocating mechanism 76, driving the positioning groove 73 on the moving plate 72 to slide between the two positioning rods 71, and the corrugated design of the positioning groove 73 can drive the knocking rod 74 to reciprocate and hit the filter 6, which is used to clean the filter 6 and prevent the filter 6 from being blocked.

[0034] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A feeding device for screening sand, gravel, aggregate and slag, characterized in that: include: A discharge hopper (1), the discharge hopper (1) is installed at the bottom of the slag screening machine, and a discharge pipe (2) for discharging materials is fixedly installed at the bottom of the discharge hopper (1); A centralizing plate (3), the centralizing plate (3) is symmetrically rotatably mounted on the top of the inner wall of the discharge pipe (2) via an axle pin, and the centralizing plate (3) can centrally discharge the discharge material in the discharge hopper (1); An air suction hood (4), the air suction hood (4) is symmetrically fixedly mounted on the bottom of the inner wall of the discharge pipe (2), an air duct (5) is fixedly mounted in the middle of the air suction hood (4), the air duct (5) passes through the discharge pipe (2), the air duct (5) is connected to the fan, the air duct (5) mounted on the fan is connected to the bag dust collector, and a filter (6) is fixedly mounted at the air inlet of the air duct (5); The cleaning device (7) is installed at the bottom of the discharge pipe (2) and can strike the filter screen (6) to prevent excessive accumulation of dust on the filter screen (6) and affect the efficiency of dust absorption.

2. The feeding device for screening sand, gravel, aggregate and slag according to claim 1 is characterized in that: A baffle (8) is fixedly mounted on the top of the inner wall of the discharge pipe (2) at a position corresponding to the top end of the centralizing plate (3).

3. The feeding device for screening sand, gravel, aggregate and slag according to claim 2 is characterized in that: A shock absorbing spring (9) is fixedly mounted on one side of the concentrating plate (3), and one end of the shock absorbing spring (9) is fixedly connected to one side of the concentrating plate (3).

4. The feeding device for screening sand, gravel, aggregate and slag according to claim 1, characterized in that: The cleaning device (7) comprises a positioning rod (71), a movable plate (72), a positioning groove (73), a knocking rod (74), a fixed frame (75) and a motor reciprocating mechanism (76). Positioning rods (71) are symmetrically fixedly installed on both sides of the bottom end of the discharge pipe (2). A movable plate (72) is slidably installed between two positioning rods (71) at the same end close to the suction cover (4). Positioning grooves (73) are symmetrically opened at both ends of the movable plate (72). The positioning grooves (73) are slidably connected to the positioning rods (71). The ends of the two movable plates (72) are fixedly arranged. A knocking rod (74) for striking the filter screen (6) is equidistantly fixedly installed on one side of the movable plate (72) corresponding to the position of the filter screen (6). A fixed frame (75) is fixedly installed on the position of the discharge pipe (2) corresponding to one end of the movable plate (72). A motor reciprocating mechanism (76) for driving the movable plate (72) to reciprocate left and right is fixedly installed in the middle of one end of the fixed frame (75) away from the discharge pipe (2).

5. The feeding device for screening sand, gravel, aggregate and slag according to claim 4, characterized in that: The positioning groove (73) and the positioning rod (71) are tightly fitted and slidably connected.

6. The feeding device for screening sand, gravel, aggregate and slag according to claim 3, characterized in that: A rubber pad is installed on the surface of the concentrating plate (3) on one side away from the shock absorbing spring (9).

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