Concrete slurry screening device

Abstract

The utility model provides a concrete slurry screening device. The concrete slurry screening device comprises a support; the feeding hopper is fixed on a cross beam at the top of the bracket, a feeding hole is formed in the upper end, a discharging hole is formed in the lower end, and a material control unit is arranged at the lower end of the discharging hole; the material control unit comprises a material guide bin, a gate plate, an adjusting rod, an adjusting seat and a bolt; the pulp screening unit comprises a spring, a pulp screening hopper, a transmission shaft, a driving belt pulley, a driven belt pulley, a driving motor, a driven shaft and an eccentric block; the raw materials are vibrated and screened through the pulp screening unit, large raw materials are separated out, centralized treatment is facilitated, the screening efficiency is greatly improved, and the labor intensity is reduced; a material control unit arranged at the bottom of the feeding hopper can effectively adjust the discharging speed, and the problem that the screening effect becomes poor due to too much stacked materials in the feeding hopper is solved; the material distributing rod arranged in the feeding hopper can crush large materials, manual mashing is not needed, and the manual labor amount is reduced; the device is simple in structure and easy to maintain.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete slurry screening, in particular to a concrete slurry screening device. Background Art

[0002] In the production process of concrete, slurry screening is a crucial link. The main purpose of slurry screening is to remove impurities, bulk materials and particles that do not meet the requirements in the concrete slurry to ensure uniform quality and stable performance of the concrete. However, most traditional slurry screening methods rely on manual operation. First of all, the low efficiency of manual slurry screening is a prominent problem. Due to the viscosity and humidity of the concrete slurry, it is easy to cause blockage and adhesion during manual screening, resulting in slow screening speed and unable to meet the needs of large-scale production. In addition, manual slurry screening requires a lot of manpower, which increases production costs. Slurry screening workers need to perform repetitive screening work for a long time, which not only easily leads to fatigue and work-related injuries, but also affects the workers' work enthusiasm and production efficiency. Due to the uncontrollability of manual operation, uneven screening and missed screening are prone to occur during the screening process, resulting in unstable concrete quality and affecting the performance of concrete. In order to solve the above problems, some automated slurry screening equipment has been introduced into concrete production in recent years. However, these devices are often complex in structure, difficult to maintain, and the screening efficiency and quality still need to be improved. Utility Model Content

[0003] In view of the above-mentioned technical deficiencies, the purpose of the utility model is to provide a concrete slurry screening device to solve the problems existing in the traditional manual slurry screening method, improve the screening efficiency and quality, reduce production costs and labor intensity, and meet the needs of concrete production.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A concrete slurry screening device, comprising:

[0006] A bracket, with a crossbeam fixed on the top and a plurality of supporting legs on the bottom;

[0007] A feed hopper is fixed on the crossbeam at the top of the bracket, with a feed port at the upper end, a discharge port at the lower end, and a material control unit at the lower end of the discharge port; the material control unit includes a guide bin, a gate, an adjusting rod, an adjusting seat and a latch; the guide bin is fixed at the lower end of the discharge port; the gate is placed in the guide bin, and the top end is hingedly connected to the guide bin; an arc-shaped guide hole is arranged on the side of the guide bin; the adjusting rod is fixedly connected to the gate, and the adjusting rod passes through the arc-shaped guide hole and extends to the outside of the guide bin; the adjusting seat is placed outside the guide bin and fixedly connected to the adjusting rod; a plurality of first plug holes are arranged on the guide bin, and the plurality of first plug holes are distributed in a circular array with the axis of the arc-shaped guide hole as the center; a second plug hole matched with the first plug hole is arranged on the adjusting seat; the latch is plugged into the first plug hole from the second plug hole;

[0008] The pulp screening unit comprises a spring, a pulp screening bucket, a transmission shaft, a driving pulley, a driven pulley, a driving motor, a driven shaft and an eccentric block; the pulp screening bucket is placed below the material guide bin, and a screen is fixedly arranged at the bottom; the top of the spring is fixedly connected to the pulp screening bucket, and the lower part is fixedly connected to the bracket; the transmission shaft and the driven shaft are rotatably mounted on the pulp screening bucket; the driving motor is fixed on the bracket and is connected to the transmission shaft; the driving pulley is mounted on the transmission shaft; the driven pulley is mounted on the driven shaft and is connected to the driving pulley through a belt transmission; the eccentric block is fixed on the driven shaft;

[0009] The conveying unit is placed below the pulp screening bucket and is fixedly connected to the bracket.

[0010] Preferably, the conveying unit is a belt conveyor.

[0011] Preferably, a plurality of distribution rods are fixedly arranged in the feed hopper; the plurality of distribution rods are distributed in an array at equal intervals.

[0012] Preferably, it further comprises a material guide hopper; the material guide hopper is placed between the pulp screening hopper and the conveying unit; and the diameter of the material guide hopper gradually shrinks from top to bottom.

[0013] Preferably, the pulp screening bucket is obliquely mounted on the bracket, with a higher end connected to the material guide bin and a lower end provided with a discharge port; a material guide plate adapted to the discharge port is fixedly provided on the bracket.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] The raw materials are vibrated and screened by the pulp screening unit, and large pieces of raw materials are separated for centralized processing, which greatly improves the screening efficiency and reduces the labor intensity; the material control unit arranged at the bottom of the feed hopper can effectively adjust the material feeding speed to prevent the problem of excessive material accumulation in the feed hopper causing poor screening effect; the dividing rod arranged in the feed hopper can crush large pieces of material without manual crushing, thus reducing the labor workload; the utility model has a simple structure and is easy to maintain and service. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the pulp screening unit in the utility model;

[0018] Figure 3 It is a structural schematic diagram of the feed hopper in the utility model;

[0019] Figure 4 This is a structural exploded diagram of the feed hopper and the material control unit in the utility model;

[0020] Figure 5 It is a structural schematic diagram of the material control unit in the utility model;

[0021] Figure 6 It is a structural schematic diagram of the guide hopper in the utility model.

[0022] in:

[0023] 1. Conveying unit; 2. Distributing rod; 3. Feed hopper; 4. Crossbeam; 5. Screening unit; 51. Screen; 52. Driven shaft; 53. Driving motor; 54. Discharge port; 55. Transmission shaft; 56. Active pulley; 57. Eccentric block; 58. Driven pulley; 59. Screening hopper; 6. Guide plate; 7. Spring; 8. Guide hopper; 9. Material control unit; 91. Arc guide hole; 92. Gate; 93. Guide bin; 94. Adjusting rod; 95. First plug hole; 96. Second plug hole; 97. Adjusting seat; 98. Latch; 10. Bracket. DETAILED DESCRIPTION

[0024] The utility model will be further described below in conjunction with the accompanying drawings.

[0025] like Figures 1 to 6 As shown, a concrete slurry screening device comprises:

[0026] The bracket 10 has a crossbeam 4 fixedly disposed on the top and a plurality of legs disposed on the bottom;

[0027] The feed hopper 3 is fixed on the crossbeam 4 at the top of the bracket 10, and is provided with a feed port at the upper end, a discharge port at the lower end, and a material control unit 9 at the lower end of the discharge port; the raw material enters the feed hopper 3 from the feed port and is discharged downward from the discharge port; the material control unit 9 includes a guide bin 93, a gate 92, an adjusting rod 94, an adjusting seat 97 and a latch 98; the guide bin 93 is fixed at the lower end of the discharge port; the gate 92 is placed in the guide bin 93, and the top end is hingedly connected to the guide bin 93; an arc-shaped guide hole 91 is provided on the side of the guide bin 93; the adjusting rod 94 is fixedly connected to the gate 92, and the adjusting rod 94 passes through the arc-shaped guide hole 91 and extends to the outside of the guide bin 93; the adjusting seat 97 is placed outside the guide bin 93 and is connected to the adjusting seat The section rod 94 is fixedly connected; a plurality of first plug holes 95 are arranged on the guide bin 93, and the plurality of first plug holes 95 are distributed in a circular array with the axis of the arc-shaped guide hole 91 as the center; a second plug hole 96 adapted to the first plug hole 95 is arranged on the adjustment seat 97; a latch 98 is inserted into the first plug hole 95 from the second plug hole 96; after the latch 98 is pulled out from the adjustment seat 97, the position of the adjustment rod 94 in the arc-shaped guide hole 91 is rotated to adjust the opening size between the gate plate 92 and the guide bin 93, thereby adjusting the material dropping speed, aligning the second plug hole 96 with the corresponding first plug hole 95, inserting the latch 98 from the second plug hole 96 into the first plug hole 95, and fixing the gate plate 92 on the guide bin 93;

[0028] The pulp screening unit 5 includes a spring 7, a pulp screening bucket 59, a transmission shaft 55, a driving pulley 56, a driven pulley 58, a driving motor 53, a driven shaft 52 and an eccentric block 57; the pulp screening bucket 59 is placed below the guide bin 93, and a screen 51 is fixedly arranged at the bottom; the top of the spring 7 is fixedly connected to the pulp screening bucket 59, and the lower part is fixedly connected to the bracket 10; the transmission shaft 55 and the driven shaft 52 are rotatably mounted on the pulp screening bucket 59; the driving motor 53 is fixed on the bracket 10 and is in transmission connection with the transmission shaft 55; the driving pulley 56 is mounted on the transmission The driven pulley 58 is mounted on the driven shaft 52 and connected to the driving pulley 56 through a belt drive; the eccentric block 57 is fixed on the driven shaft 52; after the raw material enters the pulp screening bucket 59 from the guide bin 93, the driving motor 53 drives the transmission shaft 55 to rotate, and the driven shaft 52 is driven to rotate through the transmission shaft 55, and the driven shaft 52 drives the eccentric block 57 to rotate. Under the elastic force of the spring 7, the pulp screening bucket 59 shakes with the eccentric block 57, so that the raw material in the pulp screening bucket 59 is screened by the screen 51, and the large pieces of raw material remain in the pulp screening bucket 59;

[0029] The conveying unit 1 is disposed below the pulp screening bucket 59 and is fixedly connected to the bracket 10, and is used for conveying the screened raw materials to a target location.

[0030] In this embodiment, the conveying unit 1 is a belt conveyor, and the screened raw materials fall onto the belt conveyor and are transported to a predetermined location.

[0031] In this embodiment, a plurality of dividing rods 2 are fixedly arranged in the feed hopper 3; the plurality of dividing rods 2 are distributed in an array at equal intervals. When the raw materials are poured into the feed hopper 3, they first collide with the dividing rods 2, so that the large pieces of raw materials are broken into small pieces, which is convenient for the subsequent pulp screening work.

[0032] In this embodiment, a material guide hopper 8 is also included; the material guide hopper 8 is placed between the pulp screening hopper 59 and the conveying unit 1; the diameter of the material guide hopper 8 gradually shrinks from top to bottom, and the raw materials screened by the material guide hopper 8 fall into the material guide hopper 8, and after being concentrated by the material guide hopper 8, fall onto the belt conveyor for transportation.

[0033] In this embodiment, the pulp screening bucket 59 is obliquely installed on the bracket 10, with the higher end connected to the guide bin 93 and the lower end provided with a discharge port 54; a guide plate 6 adapted to the discharge port 54 is fixedly provided on the bracket 10, and large pieces of raw materials move toward the discharge port 54 in the pulp screening bucket 59 as the pulp screening bucket 59 shakes, and slide down from the guide plate 6 for centralized processing.

[0034] When in use, concrete material is poured into the feed hopper 3 from above the feed hopper 3, and large pieces of raw materials are broken into small pieces after colliding with the dividing rod 2; the latch 98 is inserted from the second insertion hole 96 into the target first insertion hole 95 to adjust the discharge speed; the raw materials enter the pulp screening bucket 59, and the eccentric block 57 is driven by the driving motor 53 to rotate, so that the pulp screening bucket 59 shakes, and large pieces of raw materials slide onto the guide plate 6 at the discharge port 54 for recycling, and the raw materials that meet the standards fall into the guide hopper 8 and then fall on the belt conveyor, and are transported to the target position by the belt conveyor.

Claims

1. A concrete slurry screening device, characterized in that: include: A bracket (10) having a crossbeam (4) fixedly arranged on the top and a plurality of supporting legs arranged on the bottom; The feed hopper (3) is fixed on the crossbeam (4) at the top of the bracket (10), and is provided with a feed port at the upper end and a discharge port at the lower end. A material control unit (9) is provided at the lower end of the discharge port; the material control unit (9) comprises a material guide bin (93), a gate plate (92), an adjustment rod (94), an adjustment seat (97) and a latch (98); the material guide bin (93) is fixed at the lower end of the discharge port; the gate plate (92) is placed in the material guide bin (93), and the top end is hingedly connected to the material guide bin (93); an arc-shaped guide hole (91) is provided on the side of the material guide bin (93); the adjustment rod (94) and the gate plate (9 2) a fixed connection arrangement, wherein the adjusting rod (94) passes through the arc-shaped guide hole (91) and extends to the outside of the material guide bin (93); the adjusting seat (97) is placed outside the material guide bin (93) and is fixedly connected to the adjusting rod (94); a plurality of first plug holes (95) are arranged on the material guide bin (93), and the plurality of first plug holes (95) are distributed in a circular array with the axis of the arc-shaped guide hole (91) as the center; a second plug hole (96) adapted to the first plug hole (95) is arranged on the adjusting seat (97); and a latch (98) is inserted from the second plug hole (96) into the first plug hole (95); The pulp screening unit (5) comprises a spring (7), a pulp screening bucket (59), a transmission shaft (55), a driving pulley (56), a driven pulley (58), a driving motor (53), a driven shaft (52) and an eccentric block (57); the pulp screening bucket (59) is placed below the material guide bin (93), and a screen (51) is fixedly arranged at the bottom; the top of the spring (7) is fixedly connected to the pulp screening bucket (59), and the bottom is fixedly connected to the bracket (10); the transmission shaft (55) and the driven shaft (52) are rotatably mounted on the pulp screening bucket (59); the driving motor (53) is fixed on the bracket (10) and is transmission-connected to the transmission shaft (55); the driving pulley (56) is mounted on the transmission shaft (55); the driven pulley (58) is mounted on the driven shaft (52) and is connected to the driving pulley (56) through a belt transmission; the eccentric block (57) is fixed on the driven shaft (52); The conveying unit (1) is placed below the pulp screening bucket (59) and is fixedly connected to the bracket (10).

2. The concrete slurry screening device according to claim 1, characterized in that: The conveying unit (1) is a belt conveyor.

3. The concrete slurry screening device according to claim 1, characterized in that: A plurality of distribution rods (2) are fixedly arranged in the feed hopper (3); the plurality of distribution rods (2) are distributed in an array at equal intervals.

4. The concrete slurry screening device according to any one of claims 1 to 3, characterized in that: It also comprises a material guide hopper (8); the material guide hopper (8) is placed between the pulp screening hopper (59) and the conveying unit (1); the diameter of the material guide hopper (8) gradually shrinks from top to bottom.

5. The concrete slurry screening device according to claim 1, characterized in that: The pulp screening bucket (59) is obliquely mounted on the bracket (10), with a higher end connected to the material guide bin (93) and a lower end provided with a material discharge port (54); a material guide plate (6) adapted to the material discharge port (54) is fixedly mounted on the bracket (10).

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