Building material screening equipment

Abstract

The utility model relates to the technical field of material screening, and discloses a building material screening device which comprises a stock bin and a conveying belt, a partition frame extending in the vertical direction is arranged in the middle of the stock bin, the partition frame divides the space in the stock bin into a sand discharging area and a gravel discharging area, and a first filter net frame is arranged at the bottom of the sand discharging area. A second filter screen frame is arranged at the bottom of the gravel discharging area, fixing pipes extending in the vertical direction are arranged on the front side of the separation frame and the two sides of the stock bin, a plurality of dust suction holes evenly distributed in the vertical direction at intervals are formed in the two sides of each fixing pipe, and a suction pump with an air inlet connected with the upper ends of the fixing pipes is arranged on the upper side of the stock bin; and a filter cloth bag is arranged on an air outlet of the suction pump. The suction pump is used for providing suction force, the fixing pipe can absorb dust overflowing out of the sand discharging area and the gravel discharging area through the dust suction holes, and finally the dust can be effectively controlled in the discharging process of the transport vehicle.

Description

Technical Field

[0001] The utility model belongs to the technical field of material screening, in particular to a building material screening device. Background Art

[0002] Concrete is one of the most important building materials in modern times. The main materials of concrete are water, sand, gravel and cement, as well as admixtures and additives added when necessary, which are mixed in a certain proportion, uniformly stirred, compacted and hardened to form an artificial stone.

[0003] At present, a Chinese patent with publication number CN217196171U and publication date August 16, 2022 discloses a sand and gravel unloading device, including a unloading box, a screen plate is slidably provided on the top of the inner wall of the unloading box, a protective box is fixedly provided in the middle of the inner wall of the unloading box, a motor is fixedly connected to the bottom of the inner wall of the protective box, and a first rotating rod is fixedly connected to the top of the motor output end. The top of the first rotating rod passes through the protective box and slides through the center of the screen plate. A push plate is slidably provided on the top of the outer wall of the first rotating rod, and the bottom of the push plate is cooperated and abutted with the top of the screen plate. A first bevel gear is fixedly connected to the outer wall of the bottom end of the first rotating rod, and a second bevel gear is meshed and connected to one side of the first bevel gear. A second rotating rod is fixedly connected in the second bevel gear, and a cam is fixedly connected to the end of the second rotating rod away from the second bevel gear. A roller is cooperated and abutted on the top of the cam, and the roller is rotatably connected to the bottom of the screen plate.

[0004] The sand and gravel are poured into the unloading box by a transport vehicle. After the sand and gravel are filtered through the screen plate, the large stone particles will be retained on the screen plate, and the sand and gravel after filtering will fall onto the conveyor belt below, and then be transported to the next process through the conveyor belt. However, when the transport vehicle is unloading, the dust in the falling sand and gravel will spread into the air, which will affect the surrounding air environment. Utility Model Content

[0005] The utility model aims to provide a building material screening device which can effectively control dust during the unloading process of a transport vehicle.

[0006] The above technical purpose of the utility model is achieved through the following technical solutions: a building material screening equipment, including a silo and a conveyor belt located below the silo, a partition frame extending in the vertical direction is arranged in the middle of the silo, the partition frame divides the space in the silo into a sand unloading area and a sand and gravel unloading area, a first filter mesh frame is arranged at the bottom of the sand unloading area, and a second filter mesh frame is arranged at the bottom of the sand and gravel unloading area, fixed pipes extending in the vertical direction are arranged on the front side of the partition frame and both sides of the silo, multiple dust suction holes evenly spaced in the vertical direction are opened on both sides of the fixed pipe, a suction pump whose air inlet is connected to the upper end of the fixed pipe is arranged on the upper side of the silo, and a filter bag is arranged on the air outlet of the suction pump.

[0007] The utility model is further configured as follows: a concrete base is provided on the lower side of the silo and the lower side of the partition frame.

[0008] The utility model is further configured as follows: the aperture of the first filter mesh frame is smaller than the aperture of the second filter mesh frame.

[0009] The utility model is further configured as follows: a baffle for the rear wheels of the transport vehicle to abut against is provided at the bottom of the sand unloading area and the gravel unloading area.

[0010] The utility model is further configured as follows: one side of the first filter rack and the second filter rack are respectively hinged on the baffles of the sand unloading area and the gravel unloading area, and a support platform is provided at the bottom of the silo for supporting the first filter rack and the second filter rack away from the baffle.

[0011] The utility model is further configured as follows: an arc-shaped baffle plate located above the support platform is provided on one side of the first filter rack and the second filter rack away from the baffle platform.

[0012] The utility model is further configured as follows: a winch is arranged on the upper side of the silo, and a steel wire rope is arranged on the winch with one end connected to the inside of the winch and the other end connected to the upper side of the arc baffle.

[0013] In summary, the utility model has the following beneficial effects:

[0014] 1. The space in the silo can be divided into a sand unloading area and a gravel unloading area by using a partition frame, and then the sand is filtered by the first filter frame, and the gravel is filtered by the second filter frame; when the transport vehicle is unloading in the sand unloading area and the gravel unloading area, the suction pump on the upper side of the silo is turned on to provide suction, and the fixed pipe can absorb the dust spilled from the sand unloading area and the gravel unloading area through the dust suction hole, and finally the dust can be effectively controlled during the unloading process of the transport vehicle;

[0015] 2. The concrete bases are set at the bottom of the silo and the bottom of the partition frame. The concrete bases can protect the silo and prevent the transport vehicle from directly colliding with the silo;

[0016] 3. The aperture of the first filter rack is smaller than that of the second filter rack. In this case, the first filter rack can be used to discharge small particles of sand, while the second filter rack can be used to discharge large particles of sand and gravel;

[0017] 4. By using the baffles provided at the bottom of the sand unloading area and the gravel unloading area, when the transport vehicle reverses and drives into the sand unloading area or the gravel unloading area, the baffles can contact the rear wheels of the transport vehicle, thereby locating the unloading position of the transport vehicle, which is conducive to the transport vehicle completing the unloading work at the designated position;

[0018] 5. When it is necessary to clean the particles filtered by the first filter rack and the second filter rack, one side of the first filter rack and the second filter rack is hinged on the baffles of the sand unloading area and the gravel unloading area respectively, and the first filter rack and the second filter rack are flipped toward one side of the baffle, and the particles on the first filter rack and the second filter rack can slide down under the action of their own gravity;

[0019] 6. The arc-shaped baffle plate located above the support platform is arranged on the side of the first filter rack and the second filter rack away from the baffle plate. The arc-shaped baffle plate can guide the materials pouring down from the transport vehicle, which is conducive to the smooth passage of the materials through the first filter rack and the second filter rack;

[0020] 7. When the first filter rack and the second filter rack need to be flipped toward one side of the baffle, the winch is used to drive the wire rope to be reeled up, and the wire rope can drive the first filter rack and the second filter rack to swing upward through the arc baffle. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 It is a structural schematic diagram of the utility model;

[0023] Figure 2 It is a structural sectional view of the utility model.

[0024] In the figure, 1, silo; 11, partition frame; 12, suction pump; 121, filter bag; 13, concrete base; 14, support platform; 2, conveyor belt; 3, first filter rack; 4, second filter rack; 5, fixed pipe; 51, dust suction hole; 6, baffle; 7, arc baffle; 8, winch; 81, wire rope. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of 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] A building material screening device, referring to Figure 1 , Figure 2 The building material screening equipment includes a silo 1 and a conveyor belt 2, wherein the conveyor belt 2 is located below the silo 1, and a cavity is opened on the ground below the silo 1 for the conveyor belt 2 to be placed in, so that the screened materials can be transmitted out by the conveyor belt 2; at the same time, a partition frame 11 extending in the vertical direction is fixed to the middle of the silo 1 by bolts, and the space in the silo 1 is divided into a sand unloading area and a gravel unloading area by the partition frame 11, wherein a first filter frame 3 is arranged at the bottom of the sand unloading area, and a second filter frame 4 is arranged at the bottom of the gravel unloading area, and the aperture of the first filter frame 3 is smaller than the aperture of the second filter frame 4, at this time, the first filter frame 3 can filter the sand, and the second filter frame 4 can filter the gravel.

[0027] Reference Figure 1 , Figure 2 A concrete base 13 is cast on the lower side of the silo 1 and the lower side of the partition frame 11, which is reinforced and anti-collision by the concrete base 13; the bottom of the sand unloading area and the gravel unloading area are fixed with a baffle 6 for the rear wheels of the transport vehicle to contact by bolts, and one side of the first filter frame 3 and the second filter frame 4 are respectively hinged on the baffle 6 in the sand unloading area and the gravel unloading area, and at the same time, a support platform 14 is cast at the bottom of the silo 1 for supporting the first filter frame 3 and the second filter frame 4 away from the baffle 6; an arc-shaped baffle 7 located above the support platform 14 is welded on the side of the first filter frame 3 and the second filter frame 4 away from the baffle 6, and a winch 8 is fixed on the upper side of the silo 1 by bolts, and a steel wire rope 81 with one end connected to the inside of the winch 8 and the other end connected to the upper side of the arc-shaped baffle 7 is provided on the winch 8.

[0028] Reference Figure 1The front side of the partition frame 11 and both sides of the silo 1 are connected with a fixed pipe 5 through a clamp, and the fixed pipe 5 extends in the vertical direction, wherein both sides of the fixed pipe 5 are provided with a plurality of dust suction holes 51 evenly spaced along the vertical direction, and at the same time, a suction pump 12 is fixed by bolts on the upper side of the silo 1 and at the position corresponding to each fixed pipe 5, and the air inlet of the suction pump 12 is connected to the upper end of the fixed pipe 5, wherein the air outlet of the suction pump 12 is connected with a filter bag 121 through a clamp.

[0029] Principle: The space in the silo 1 can be divided into a sand unloading area and a gravel unloading area by using the partition frame 11, and then the sand is filtered through the first filter frame 3, and the sand and gravel are filtered through the second filter frame 4; during the process of the transport vehicle unloading in the sand unloading area and the gravel unloading area, the suction pump 12 on the upper side of the silo 1 is turned on, and the suction pump 12 can provide suction. At this time, the fixed pipe 5 can absorb the dust overflowed from the sand unloading area and the gravel unloading area through the dust suction hole 51, and finally the dust can be effectively controlled during the unloading process of the transport vehicle.

Claims

1. A building material screening device, comprising a silo (1) and a conveyor belt (2) located below the silo (1), characterized in that: A partition frame (11) extending in the vertical direction is arranged in the middle of the silo (1), and the partition frame (11) divides the space inside the silo (1) into a sand unloading area and a gravel unloading area. A first filter frame (3) is arranged at the bottom of the sand unloading area, and a second filter frame (4) is arranged at the bottom of the gravel unloading area. A fixed pipe (5) extending in the vertical direction is arranged on the front side of the partition frame (11) and on both sides of the silo (1). A plurality of dust suction holes (51) evenly spaced in the vertical direction are arranged on both sides of the fixed pipe (5). A suction pump (12) having an air inlet connected to the upper end of the fixed pipe (5) is arranged on the upper side of the silo (1), and a filter bag (121) is arranged on the air outlet of the suction pump (12).

2. A building material screening device according to claim 1, characterized in that: A concrete base (13) is provided on the lower side of the silo (1) and the lower side of the partition frame (11).

3. A building material screening device according to claim 1, characterized in that: The pore size of the first filter mesh frame (3) is smaller than the pore size of the second filter mesh frame (4).

4. A building material screening device according to claim 1, characterized in that: The bottoms of the sand unloading area and the gravel unloading area are both provided with a stopper (6) for the rear wheels of the transport vehicle to abut against.

5. A construction material screening device according to claim 4, characterized in that: One side of the first filter rack (3) and the second filter rack (4) are respectively hinged on the baffles (6) of the sand unloading area and the gravel unloading area, and a support platform (14) is provided at the bottom of the silo (1) for supporting the first filter rack (3) and the second filter rack (4) away from the baffle (6).

6. A construction material screening device according to claim 5, characterized in that: An arc-shaped baffle plate (7) located above the support platform (14) is provided on the side of the first filter rack (3) and the second filter rack (4) away from the baffle platform (6).

7. A building material screening device according to claim 6, characterized in that: A winch (8) is provided on the upper side of the silo (1), and a steel wire rope (81) is provided on the winch (8), one end of which is connected to the inside of the winch (8) and the other end of which is connected to the upper side of the arc-shaped baffle (7).

Images