Concrete stirring device for civil engineering construction

Abstract

The utility model discloses a concrete stirring device for civil engineering construction, which is characterized in that dust generated when cement and gravel are added and dust generated in a stirring process can be scattered from a feeding hopper, and at the moment, a negative pressure pumping mechanism and a spraying mechanism are started, so that air carries the dust to flow towards a base plate with holes; when air passes through the base plate with the holes, spraying water of the spraying mechanism sprays and removes dust in the air, the spraying water carrying the dust is finally collected in the water storage tank, and water can be supplemented to concrete in the stirring process through the water supply structure.

Description

Technical Field

[0001] The utility model relates to the field of concrete processing equipment, in particular to a concrete mixing device for civil engineering construction. Background Technique

[0002] A concrete mixing device is equipment used for centralized mixing of concrete. When adding cement, sand and gravel into the concrete mixing device, dust will be generated, and dust will also be generated during the mixing process. The dust will overflow from the feeding hopper, and the overflowing dust will have a great impact on the health of surrounding construction workers and will also cause environmental pollution to the surrounding area.

[0003] For example, the Chinese patent with the authorization announcement number CN218195973U and the authorization announcement date of January 3, 2023 discloses "A Concrete Mixing Cylinder with a Dust Removal and Recycling System". When dust is generated when adding cement, sand and gravel through the feeding hopper, the driving mechanism drives the air collecting hood to reciprocate left and right, so as to improve the suction effect on the dust in the mixing cylinder body, and the dust is filtered by the dust collection device for recycling.

[0004] However, it takes a certain amount of time to feed materials through the feeding hopper. In the above patent, the dust in the mixing cylinder is extracted, and the problem of dust overflow at the feeding hopper cannot be solved. Content of the Utility Model

[0005] The purpose of the utility model is to provide a concrete mixing device for civil engineering construction, which can solve the problem of dust overflow at the feeding hopper.

[0006] The above technical purpose of the utility model is achieved through the following technical solutions: A concrete mixing device for civil engineering construction, including a mixing cylinder body, a feeding hopper arranged at the top of one end of the mixing cylinder body, a stirrer arranged in the mixing cylinder body, and a dust suction system. The dust suction system includes a housing arranged at the top of the feeding hopper and aligned with the opening of the feeding hopper, a negative pressure pumping mechanism arranged at the rear side of the housing, a perforated substrate arranged between the top and the bottom in the housing and extending obliquely downward towards the direction close to the feeding hopper at the lower end, a spraying mechanism arranged in the housing and spraying towards the upper end of the perforated substrate so that the sprayed water flows downward along the perforated substrate, a water storage tank arranged at the bottom of the housing, and a water supply structure arranged between the water storage tank and the mixing cylinder body; the negative pressure pumping mechanism realizes pumping out the air in the cavity formed between the housing and the perforated substrate, so that the air near the opening of the feeding hopper flows towards the perforated substrate; the water storage tank is used for supplying water to the spraying system and recycling the sprayed water.

[0007] The further setting of the utility model is: The negative pressure pumping mechanism includes an air outlet pipe arranged at the rear side of the housing, a filter grille arranged at the connection between the air outlet pipe and the housing, and a suction fan connected to the air outlet pipe.

[0008] A further setting of the present utility model is that: the spraying mechanism includes a spray pipe arranged at the top inside the housing, a plurality of spray heads arranged on the spray pipe, a water pump communicated with the water storage tank, and a connecting hose arranged between the water pump and the spray pipe.

[0009] A further setting of the present utility model is that: the water supply structure includes a water supply pipe arranged at the top of the mixing cylinder body, a three-way valve arranged at the water outlet end of the water pump, a water pipe arranged between one joint of the three-way valve and the water supply pipe, and the connecting hose is communicated with the other joint of the three-way valve.

[0010] A further setting of the present utility model is that: a water distribution pipe connected to the water supply pipe is arranged inside the mixing cylinder body, the water distribution pipe extends along the length direction of the mixing cylinder body, and a plurality of water outlets arranged along its length direction are arranged on the water distribution pipe.

[0011] In summary, the beneficial effects of the present utility model are:

[0012] 1. Dust generated when adding cement and sand and dust generated during the mixing process will overflow from the feeding hopper. At this time, by starting the negative pressure extraction mechanism and the spraying mechanism, the air carrying the dust flows towards the perforated substrate and is extracted from the negative pressure extraction mechanism. When the air passes through the perforated substrate, the spraying water of the spraying mechanism sprays and removes the dust in the air. The spraying water carrying the dust is finally collected in the water storage tank, and the water supply structure can realize the supplementary water volume for the concrete during the mixing process;

[0013] 2. The negative pressure extraction mechanism includes an air outlet pipe arranged at the rear side of the housing, a filter grille arranged at the connection between the air outlet pipe and the housing, and an exhaust fan connected to the air outlet pipe. At this time, the exhaust fan realizes the extraction of the air in the cavity formed between the housing and the perforated substrate, so that the air near the opening of the feeding hopper flows towards the perforated substrate. The setting of the filter grille can avoid part of the dust from being discharged at the exhaust fan, and the dust filtered by the filter grille can also fall into the water storage tank for collection after falling;

[0014] 3. The spraying mechanism includes a spray pipe arranged at the top inside the housing, a plurality of spray heads arranged on the spray pipe, a water pump communicated with the water storage tank, and a connecting hose arranged between the water pump and the spray pipe to realize the spraying on the top of the perforated substrate;

[0015] 4. The water supply structure includes a water supply pipe arranged at the top of the mixing cylinder body, a three-way valve arranged at the water outlet end of the water pump, a water supply pipe arranged between one joint of the three-way valve and the water supply pipe, and the connecting hose is communicated with the other joint of the three-way valve. At this time, by changing the communication direction of the three-way valve, the water pump can supply water to the water supply pipe;

[0016] 5. In the mixing cylinder body, a water distribution pipe connected to the water supply pipe is provided. The water distribution pipe extends along the length direction of the mixing cylinder body, and a plurality of water outlets arranged along its length direction are provided on the water distribution pipe. At this time, it is possible to uniformly supplement water to the concrete during the mixing process. Brief Description of the Drawings

[0017] Figure 1 is a schematic structural diagram of the present utility model;

[0018] Figure 2 is a partial structural diagram of the present utility model.

[0019] Reference Numerals: 1, mixing cylinder body; 2, feeding hopper; 3, stirrer; 4, dust collection system; 41, housing; 42, negative pressure extraction mechanism; 421, air outlet pipe; 422, filter grille; 423, exhaust fan; 43, perforated substrate; 44, spraying mechanism; 441, spraying pipe; 442, spray head; 443, water pump; 444, connecting hose; 45, water storage tank; 46, water supply structure; 461, water supply pipe; 462, three-way valve; 463, through pipe; 464, water distribution pipe; 4641, water outlet. Detailed Description of the Embodiment

[0020] The present utility model will be further described in detail below with reference to the accompanying drawings.

[0021] Embodiment: A concrete mixing device for civil engineering construction, as Figure 1 shown, includes a mixing cylinder body 1, a feeding hopper 2 provided at the top of one end of the mixing cylinder body 1, a stirrer 3 provided in the mixing cylinder body 1, and a dust collection system 4.

[0022] The dust collection system 4 includes a housing 41 provided at the top of the feeding hopper 2 and aligned with the opening of the feeding hopper 2, a negative pressure extraction mechanism 42 provided at the rear side of the housing 41, a perforated substrate 43 provided between the top and the bottom in the housing 41 and extending obliquely downward toward the direction close to the feeding hopper 2 at the lower end, a spraying mechanism 44 provided in the housing 41 and spraying toward the upper end of the perforated substrate 43 so that the sprayed water flows downward along the perforated substrate 43, a water storage tank 45 provided at the bottom of the housing 41, and a water supply structure 46 provided between the water storage tank 45 and the mixing cylinder body 1. The negative pressure extraction mechanism 42 realizes extracting the air in the cavity formed between the housing 41 and the perforated substrate 43, so that the air near the opening of the feeding hopper 2 flows toward the perforated substrate 43; the water storage tank 45 is used for supplying water to the spraying system and recovering the sprayed water.

[0023] The negative pressure extraction mechanism 42 includes an air outlet pipe 421 provided at the rear side of the housing 41, a filter grille 422 provided at the connection between the air outlet pipe 421 and the housing 41, and an exhaust fan 423 connected to the air outlet pipe 421.

[0024] The spraying mechanism 44 includes a spray pipe 441 arranged at the top inside the housing 41, a plurality of spray heads 442 arranged on the spray pipe 441, a water pump 443 communicated with the water storage tank 45, and a connecting hose 444 arranged between the water pump 443 and the spray pipe 441.

[0025] The water supply structure 46 includes a water supply pipe 461 arranged at the top of the stirring cylinder body 1, a three-way valve 462 arranged at the water outlet end of the water pump 443, a water pipe 463 arranged between one joint of the three-way valve 462 and the water supply pipe 461. The connecting hose 444 is communicated with the other joint of the three-way valve 462. Meanwhile, a water distribution pipe 464 connected to the water supply pipe 461 is arranged inside the stirring cylinder body 1. The water distribution pipe 464 extends along the length direction of the stirring cylinder body 1, and a plurality of water outlets 4641 arranged along its length direction are arranged on the water distribution pipe 464.

[0026] Implementation effect: The dust generated when adding cement, sand and gravel and the dust generated during the stirring process will overflow from the feeding hopper 2. At this time, by starting the negative pressure extraction mechanism 42 and the spraying mechanism 44, the air carries the dust and flows towards the perforated substrate 43 and is extracted from the negative pressure extraction mechanism 42. When the air passes through the perforated substrate 43, the sprayed water of the spraying mechanism 44 sprays and removes the dust in the air. The sprayed water carrying the dust is finally collected in the water storage tank 45, and the water supply structure 46 can realize the water supplement for the concrete during the stirring process.

[0027] The negative pressure extraction mechanism 42 includes an air outlet pipe 421 arranged at the rear side of the housing 41, a filter grille 422 arranged at the connection between the air outlet pipe 421 and the housing 41, and an exhaust fan 423 connected to the air outlet pipe 421. At this time, the exhaust fan 423 extracts the air in the cavity formed between the housing 41 and the perforated substrate 43, so that the air near the opening of the feeding hopper 2 flows towards the perforated substrate 43. The setting of the filter grille 422 can prevent part of the dust from being discharged at the exhaust fan 423, and the dust filtered by the filter grille 422 can also fall into the water storage tank 45 for collection after falling.

[0028] The spraying mechanism 44 includes a spray pipe 441 arranged at the top inside the housing 41, a plurality of spray heads 442 arranged on the spray pipe 441, a water pump 443 communicated with the water storage tank 45, and a connecting hose 444 arranged between the water pump 443 and the spray pipe 441 to realize spraying on the top of the perforated substrate 43;

[0029] The water supply structure 46 includes a water supply pipe 461 provided at the top of the mixing tank body 1, a three-way valve 462 provided at the water outlet end of the water pump 443, a water supply pipe 461 provided between one joint of the three-way valve 462 and the water supply pipe 461. The connecting hose 444 is communicated with the other joint of the three-way valve 462. At this time, by changing the communication direction of the three-way valve 462, the water pump 443 can supply water to the water supply pipe 461. A water distribution pipe 464 connected to the water supply pipe 461 is provided in the mixing tank body 1. The water distribution pipe 464 extends along the length direction of the mixing tank body 1. A plurality of water outlets 4641 arranged along its length direction are provided on the water distribution pipe 464. At this time, it is possible to uniformly supplement water to the concrete during the mixing process.

[0030] This specific embodiment is only an explanation of the present invention, and it is not a limitation of the present invention. After reading this specification, those skilled in the art can make modifications to this embodiment without creative contributions as needed, but as long as it is within the scope of the claims of the present invention, it is protected by the patent law.

Claims

1. A concrete mixing device for civil engineering construction, comprising a mixing cylinder body (1), a feeding hopper (2) arranged at the top of one end of the mixing cylinder body (1), a stirrer (3) arranged in the mixing cylinder body (1), and a dust collection system (4), characterized in that: The dust collection system (4) comprises a shell (41) arranged at the top of the feeding hopper (2) and aligned with the opening of the feeding hopper (2), a negative pressure extraction mechanism (42) arranged at the rear side of the shell (41), a perforated substrate (43) arranged between the top and the bottom of the shell (41) and with the lower end extending downwardly in an inclined direction toward the feeding hopper (2), a spraying mechanism (44) arranged in the shell (41) and spraying toward the upper end of the perforated substrate (43) so that spray water flows downward along the perforated substrate (43), a water storage tank (45) arranged at the bottom of the shell (41), and a water supply structure (46) arranged between the water storage tank (45) and the mixing cylinder body (1); The negative pressure extraction mechanism (42) extracts the air in the cavity formed between the shell (41) and the perforated substrate (43), so that the air near the opening of the hopper (2) flows toward the perforated substrate (43); the water storage tank (45) is used to supply water to the spray system and recover the spray water.

2. A concrete mixing device for civil engineering construction according to claim 1, characterized in that: The negative pressure extraction mechanism (42) comprises an air outlet pipe (421) arranged at the rear side of the shell (41), a filter grille (422) arranged at the connection between the air outlet pipe (421) and the shell (41), and an exhaust fan (423) connected to the air outlet pipe (421).

3. A concrete mixing device for civil engineering construction according to claim 1, characterized in that: The spray mechanism (44) comprises a spray pipe (441) arranged at the top of the housing (41), a plurality of spray heads (442) arranged on the spray pipe (441), a water pump (443) connected to the water storage tank (45), and a connecting hose (444) arranged between the water pump (443) and the spray pipe (441).

4. A concrete mixing device for civil engineering construction according to claim 3, characterized in that: The water supply structure (46) comprises a water supply pipe (461) arranged at the top of the mixing tank body (1), a three-way valve (462) arranged at the water outlet end of the water pump (443), and a water pipe (463) arranged between a joint of the three-way valve (462) and the water supply pipe (461), and the connecting hose (444) is connected to the other joint of the three-way valve (462).

5. A concrete mixing device for civil engineering construction according to claim 4, characterized in that: A water distribution pipe (464) connected to the water supply pipe (461) is arranged in the mixing tank body (1); the water distribution pipe (464) extends along the length direction of the mixing tank body (1); and the water distribution pipe (464) is provided with a plurality of water outlets (4641) arranged along the length direction thereof.

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