Sand screening machine for concrete production

Abstract

The utility model discloses a sand screening machine for concrete production, which relates to the technical field of concrete production and comprises a tank body, a sealing cover is arranged above the tank body, the upper surface of the sealing cover is fixedly communicated with a feeding square pipe, a screening mechanism is arranged inside the tank body, and a dust collection mechanism is arranged outside the tank body. The outer surface of the sealing cover is fixedly connected with a group of upper mounting blocks, the outer surface of the tank body is fixedly connected with a group of lower mounting blocks, the bottom surface of each upper mounting block is fixedly connected with a threaded rod, the outer surface of each threaded rod is inserted into the corresponding lower mounting block, and the outer surface of each threaded rod is in threaded connection with a nut. Through the arrangement of the tank body, the feeding square pipe and the dust collection mechanism, during use, dust floating in the tank body can be sucked into the dust treatment box through the feeding square pipe by utilizing the dust collection mechanism, the dust is prevented from drifting into the air through the feeding square pipe, and the risk that an operator makes contact with the dust is reduced; the body health of the patients is effectively protected.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete production, in particular to a sand screening machine for concrete production. Background Art

[0002] Concrete refers to an artificial stone made by mixing cement as the main cementing material with water, sand, gravel, and if necessary, chemical admixtures and mineral admixtures in appropriate proportions, and then evenly mixing, compacting, forming, and curing and hardening. Concrete is mainly divided into two stages and states: the plastic state before coagulation and hardening, that is, fresh concrete or concrete mixture; the hard state after hardening, that is, hardened concrete or concrete. In order to ensure the production quality of concrete, the sand raw materials need to be screened.

[0003] According to the patent with publication number CN220759368U, a sand screen for concrete production is disclosed. The sand screen for concrete production includes a machine body, a rolling assembly is arranged inside the machine body, and the rolling assembly includes a first rolling shaft, one end of the first rolling shaft is rotatably connected to the inner wall of the machine body, the other end of the first rolling shaft passes through the inner wall of the machine body and extends to one side of the outer wall of the machine body, and is fixedly connected to a first motor, a first chassis is fixedly connected to the bottom of the first motor, one side of the first chassis is fixedly connected to one side of the machine body, second rolling shafts are symmetrically arranged on both sides of the first rolling shaft, the inner wall of each second rolling shaft is rotatably connected to the first connecting shaft, and sliding grooves are opened at both ends of the inner wall of the machine body corresponding to the first connecting shaft, and a buffer assembly is arranged on the inner wall of each sliding groove.

[0004] By adopting the above scheme, the lumpy sand can be effectively crushed to avoid the problem that the sand is difficult to disperse and screen after agglomeration, thereby clogging the discharge port. However, the above scheme still has certain limitations: since the above device does not have corresponding protective measures, the dust generated during the screening of sand and gravel floats into the air through the feed port and is inhaled by the operators, causing many adverse effects on their respiratory system and skin, and seriously affecting the health of the operators. For this reason, we provide a sand screening machine for concrete production to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to make up for the deficiencies of the prior art and provide a sand screening machine for concrete production.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sand screening machine for concrete production, comprising a tank body, a sealing cover is provided on the top of the tank body, the upper surface of the sealing cover is fixedly connected to a feeding square tube, a screening mechanism is provided inside the tank body, a dust suction mechanism is provided outside the tank body, a group of upper mounting blocks are fixedly connected to the outer surface of the sealing cover, a group of lower mounting blocks are fixedly connected to the outer surface of the tank body, a threaded rod is fixedly connected to the bottom surface of each of the upper mounting blocks, the outer surface of each of the threaded rods is inserted into the interior of the lower mounting block, the outer surface of each of the threaded rods is threadedly connected to a nut, and the bottom surface of the tank body is fixedly connected to a discharge pipe.

[0007] Furthermore, the screening mechanism includes a motor, the bottom surface of the motor is fixedly connected to the upper surface of the sealing cover, the output end of the motor is fixedly connected to a rotating shaft, and the outer surface of the rotating shaft is rotatably connected to the inside of the sealing cover.

[0008] Furthermore, a first screen is installed on the outside of the rotating shaft, a second screen is installed on the outside of the rotating shaft, and a third screen is installed on the outside of the rotating shaft.

[0009] Furthermore, the dust suction mechanism includes a mounting plate and two hinges mounted on the right side of the feeding square tube, the outer surface of the mounting plate is fixedly connected to the outer surface of the tank body, and the upper surface of the mounting plate is fixedly connected to a dust suction pump.

[0010] Furthermore, a dust suction pipe is fixedly connected to the upper surface of the dust suction pump, and a dust suction head is fixedly connected to one end of the dust suction pipe away from the dust suction pump. The dust suction head and the feeding square pipe are rotatably connected via a hinge.

[0011] Furthermore, an iron block is fixedly connected to the outer surface of the vacuum head, and an electromagnet is fixedly connected to the outer surface of the feeding square tube, and the iron block and the electromagnet are adsorbed to each other.

[0012] Furthermore, the bottom surface of the dust suction pump is fixedly connected to a dust outlet pipe, and the outer surface of the dust outlet pipe is fixedly connected to the inside of the mounting plate.

[0013] Compared with the prior art, the sand screening machine for concrete production has the following beneficial effects:

[0014] 1. The utility model is provided with a tank body, a feeding square tube and a dust suction mechanism. When in use, the dust suction mechanism can suck the dust floating in the tank body into the dust treatment box through the feeding square tube, so as to prevent the dust from being dispersed into the air through the feeding square tube, thereby reducing the risk of operators being exposed to dust and effectively protecting their health.

[0015] 2. The utility model sets a motor, a rotating shaft, a first screen, a second screen and a third screen. The mesh openings of the first screen, the second screen and the third screen gradually decrease from top to bottom. Through the cooperation between the three and the motor and the rotating shaft, multi-stage screening of sand can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional front view structural schematic diagram of the utility model;

[0017] Figure 2 It is a cross-sectional structural schematic diagram of the utility model;

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

[0019] Figure 4 It is a schematic diagram of the screening mechanism of the utility model;

[0020] Figure 5 It is a schematic diagram of the dust collection mechanism of the present utility model.

[0021] In the figure: 1. tank body; 2. sealing cover; 3. feeding square tube; 4. screening mechanism; 401. motor; 402. rotating shaft; 403. first screen; 404. second screen; 405. third screen; 5. dust suction mechanism; 501. mounting plate; 502. dust suction pump; 503. dust suction pipe; 504. dust suction head; 505. hinge; 506. iron block; 507. electromagnet; 508. dust outlet pipe; 6. upper mounting block; 7. lower mounting block; 8. threaded rod; 9. nut; 10. discharge pipe. DETAILED DESCRIPTION

[0022] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0023] The present embodiment provides a sand screening machine for concrete production. By setting a tank body 1, a feeding square pipe 3 and a dust suction mechanism 5, when in use, the dust suction mechanism 5 can suck the dust floating in the tank body 1 into the dust treatment box through the feeding square pipe 3, thereby preventing the dust from drifting into the air through the feeding square pipe 3, reducing the risk of operators being exposed to dust and effectively protecting their health.

[0024] Embodiment 1

[0025] like Figure 1-5 As shown, the utility model provides a sand screening machine for concrete production, which comprises a tank body 1 , and a sealing cover 2 is provided above the tank body 1 .

[0026] The sealing cover 2 is composed of two discs, one large and one small. The smaller disc can be inserted into the interior of the tank body 1 to improve the sealing performance of the tank body 1.

[0027] The upper surface of the sealing cover 2 is fixedly connected to a feeding square tube 3, a screening mechanism 4 is provided inside the tank body 1, a dust suction mechanism 5 is provided outside the tank body 1, a group of upper mounting blocks 6 are fixedly connected to the outer surface of the sealing cover 2, a group of lower mounting blocks 7 are fixedly connected to the outer surface of the tank body 1, a threaded rod 8 is fixedly connected to the bottom surface of each upper mounting block 6, the outer surface of each threaded rod 8 is inserted into the interior of the lower mounting block 7, and a nut 9 is threadedly connected to the outer surface of each threaded rod 8.

[0028] By cooperating with the upper mounting block 6, the lower mounting block 7, the threaded rod 8 and the nut 9, the sealing cover 2 can be disassembled and assembled, so that the operator can take out the screening mechanism 4 from the inside of the tank body 1 and clean the sand screened on the first screen 403, the second screen 404 and the third screen 405.

[0029] The bottom surface of the tank body 1 is fixedly connected with a discharge pipe 10 .

[0030] A solenoid valve is provided inside the discharge pipe 10 .

[0031] Embodiment 2

[0032] like Figure 1-5 As shown, this embodiment further illustrates Example 1, the screening mechanism 4 includes a motor 401, the bottom surface of the motor 401 is fixedly connected to the upper surface of the sealing cover 2, the output end of the motor 401 is fixedly connected to a rotating shaft 402, and the outer surface of the rotating shaft 402 is rotatably connected to the inside of the sealing cover 2.

[0033] A first screen 403 is installed on the outside of the rotating shaft 402 , a second screen 404 is installed on the outside of the rotating shaft 402 , and a third screen 405 is installed on the outside of the rotating shaft 402 .

[0034] The mesh openings of the first screen 403, the second screen 404 and the third screen 405 gradually decrease from top to bottom, and through the cooperation between the three screens, the motor 401 and the rotating shaft 402, multi-stage screening of sand can be achieved.

[0035] The mesh openings of the first sieve 403, the second sieve 404 and the third sieve 405 gradually decrease from top to bottom. When in use, the motor 401 is turned on to drive the rotating shaft 402 to rotate, and the first sieve 403, the second sieve 404 and the third sieve 405 to rotate, so as to realize multi-stage screening of sand.

[0036] The dust suction mechanism 5 includes a mounting plate 501 and two hinges 505 mounted on the right side of the feeding square tube 3 . The outer surface of the mounting plate 501 is fixedly connected to the outer surface of the tank body 1 , and a dust suction pump 502 is fixedly connected to the upper surface of the mounting plate 501 .

[0037] The upper surface of the dust suction pump 502 is fixedly connected with a dust suction pipe 503 , and one end of the dust suction pipe 503 away from the dust suction pump 502 is fixedly connected with a dust suction head 504 . The dust suction head 504 and the feeding square tube 3 are rotatably connected via a hinge 505 .

[0038] The arrangement of the dust suction pipe 503 ensures that the removal of the screening mechanism 4 will not be affected.

[0039] An iron block 506 is fixedly connected to the outer surface of the dust collector head 504, and an electromagnet 507 is fixedly connected to the outer surface of the feeding square tube 3, and the iron block 506 and the electromagnet 507 are attracted to each other.

[0040] When it is necessary to add material, turn off the power supply of the electromagnet 507 to release the adsorption of the iron block 506. The operator can open the upper opening of the feeding square tube 3 by rotating the vacuum head 504 to add material. Conversely, by rotating the vacuum head 504, when the iron block 506 contacts the electromagnet 507, turn on the power supply of the electromagnet 507 to close the opening of the feeding square tube 3.

[0041] The bottom surface of the dust suction pump 502 is fixedly connected to a dust outlet pipe 508 , and the outer surface of the dust outlet pipe 508 is fixedly connected to the inside of the mounting plate 501 .

[0042] The bottom end of the dust outlet pipe 508 should be connected to the surface of the dust treatment box, and in order to prevent the dust in the dust treatment box from floating up again, a certain amount of water should be added inside it.

[0043] When screening sand, rotate the dust head 504 to drive the iron block 506 to rotate until the iron block 506 fits with the electromagnet 507. At this time, turn on the power of the electromagnet 507 to make the iron block 506 and the electromagnet 507 adsorb to each other, close the opening of the feeding square tube 3, and then turn on the dust pump 502. Under the suction of the dust pump 502, the dust floating in the tank body 1 enters the dust head 504 through the feeding square tube 3, passes through the dust pipe 503, and is finally discharged into the dust treatment box containing a certain amount of clean water through the dust outlet pipe 508. This device can prevent the dust from floating into the air through the feeding square tube 3, reduce the risk of operators being exposed to dust, and effectively protect their health.

[0044] Working principle: When screening sand, rotate the dust head 504 to drive the iron block 506 to rotate until the iron block 506 fits with the electromagnet 507. At this time, turn on the power of the electromagnet 507 to make the iron block 506 and the electromagnet 507 adsorb each other, and close the opening of the feeding square tube 3. Then turn on the dust pump 502. Under the suction of the dust pump 502, the dust floating in the tank body 1 enters the dust head 504 through the feeding square tube 3, passes through the dust pipe 503, and is finally discharged into the dust treatment box containing a certain amount of clean water through the dust outlet pipe 508. This device can prevent the dust from floating into the air through the feeding square tube 3, reduce the risk of operators being exposed to dust, and effectively protect their health. The mesh openings of the first sieve 403, the second sieve 404 and the third sieve 405 gradually decrease from top to bottom. When in use, the motor 401 is turned on to drive the rotating shaft 402 to rotate, and the first sieve 403, the second sieve 404 and the third sieve 405 to rotate, so as to realize multi-stage screening of sand.

[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A sand screening machine for concrete production, comprising a tank body (1), characterized in that: A sealing cover (2) is provided above the tank body (1), and a feeding square tube (3) is fixedly connected to the upper surface of the sealing cover (2). A screening mechanism (4) is provided inside the tank body (1), and a dust suction mechanism (5) is provided outside the tank body (1). A group of upper mounting blocks (6) are fixedly connected to the outer surface of the sealing cover (2), and a group of lower mounting blocks (7) are fixedly connected to the outer surface of the tank body (1). A threaded rod (8) is fixedly connected to the bottom surface of each upper mounting block (6), and the outer surface of each threaded rod (8) is plugged into the inside of the lower mounting block (7). A nut (9) is threadedly connected to the outer surface of each threaded rod (8), and a discharge pipe (10) is fixedly connected to the bottom surface of the tank body (1).

2. A sand screening machine for concrete production according to claim 1, characterized in that: The screening mechanism (4) comprises a motor (401), the bottom surface of the motor (401) is fixedly connected to the upper surface of the sealing cover (2), the output end of the motor (401) is fixedly connected to a rotating shaft (402), and the outer surface of the rotating shaft (402) is rotatably connected to the inside of the sealing cover (2).

3. A sand screening machine for concrete production according to claim 2, characterized in that: A first screen (403) is installed on the outside of the rotating shaft (402), a second screen (404) is installed on the outside of the rotating shaft (402), and a third screen (405) is installed on the outside of the rotating shaft (402).

4. A sand screening machine for concrete production according to claim 1, characterized in that: The dust suction mechanism (5) comprises a mounting plate (501) and two hinges (505) mounted on the right side of the feeding square tube (3); the outer surface of the mounting plate (501) is fixedly connected to the outer surface of the tank body (1); and the upper surface of the mounting plate (501) is fixedly connected to a dust suction pump (502).

5. A sand screening machine for concrete production according to claim 4, characterized in that: The upper surface of the dust suction pump (502) is fixedly connected to a dust suction pipe (503), and one end of the dust suction pipe (503) away from the dust suction pump (502) is fixedly connected to a dust suction head (504), and the dust suction head (504) and the feeding square pipe (3) are rotatably connected via a hinge (505).

6. A sand screening machine for concrete production according to claim 5, characterized in that: An iron block (506) is fixedly connected to the outer surface of the dust collector head (504), and an electromagnet (507) is fixedly connected to the outer surface of the feeding square tube (3), and the iron block (506) and the electromagnet (507) are attracted to each other.

7. A sand screening machine for concrete production according to claim 6, characterized in that: The bottom surface of the dust suction pump (502) is fixedly connected to a dust outlet pipe (508), and the outer surface of the dust outlet pipe (508) is fixedly connected to the inside of the mounting plate (501).

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