Dust-free stirring equipment for building construction site

Abstract

The utility model belongs to the technical field of building construction, and discloses building construction site dust-free stirring equipment which comprises a stirring barrel, a feeding hopper is arranged on one side of the stirring barrel, a discharging opening is formed in the bottom of the stirring barrel, a stirring motor is vertically arranged on the top of the stirring barrel, an output shaft of the stirring motor is downward and provided with a rotating shaft, and a plurality of stirring rods are arranged on the rotating shaft. A dust removal assembly is arranged on the stirring barrel and comprises a water tank arranged on the stirring barrel, an L-shaped pipe is arranged in the water tank, one end of the L-shaped pipe is communicated with a cavity in the stirring barrel, the other end of the L-shaped pipe is close to the bottom of the water tank, and a high-pressure exhaust fan is arranged on the top of the water tank. Air in the water tank is pumped away through the high-pressure exhaust fan, the interior of the water tank is in a negative pressure state, at the moment, air in the stirring barrel and external air enter the water tank through the L-shaped pipe, water is contained in the water tank, dust in the air can be filtered out through water filtration, and the influence of the dust on the body health of workers is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to a dust-free mixing device at a building construction site. Background Art

[0002] Mixing equipment is often used in construction operations, mainly for mixing cement, sand, various dry mortar and other building materials. When the mixing equipment is mixing the raw materials, the raw materials are put into the mixing bin through the feeding port. However, many raw materials are in powder form or have dust attached to them, so it is easy to cause dust during the feeding process, which seriously pollutes the construction site and its surrounding environment, resulting in an extremely bad working environment. Long-term exposure to a large amount of dust poses a serious threat to the health of workers.

[0003] A dust-free concrete mixing device is disclosed in the Chinese utility model patent with publication number CN215903750, including support legs, a stirring mechanism is arranged on the upper part of the support legs, the stirring mechanism is composed of a stirring drum, a dust cover, a stirring motor, and a stirring rod, a feeding hopper is arranged on the outside of the stirring drum, and a dust removal mechanism is arranged on the outside of the stirring drum at the feeding hopper, and the dust removal mechanism is composed of an atomizing nozzle, an atomizing pipe, a mounting frame, an output pipe, a connecting pipe, a water tank, and a pump body. The water in the water tank is sprayed out from the atomizing nozzle through the connecting pipe, the output pipe, and the atomizing pipe through the pump body, so as to absorb the dust floating in the air and make it fall.

[0004] With respect to the above-mentioned related technologies, the inventors believe that the following defects exist: during the use of the above-mentioned device, when the water sprayed from the atomizing nozzle absorbs the dust floating in the air, it will still float in the air for a period of time and cannot fall quickly. The mixture of floating water and dust may adhere to the skin of the staff and affect the health of the staff. Utility Model Content

[0005] In order to solve the above problems, the utility model provides a dust-free mixing device at a construction site.

[0006] The above technical purpose of the utility model is achieved through the following technical solutions: a dust-free mixing equipment at a construction site, comprising a mixing drum, a feed hopper is provided on one side of the mixing drum, a discharge port is provided at the bottom, a mixing motor is vertically provided on the top of the mixing drum, the output shaft of the mixing motor is downward and provided with a rotating shaft, a plurality of mixing rods are provided on the rotating shaft, a dust removal assembly is provided on the mixing drum, the dust removal assembly comprises a water tank provided on the mixing drum, an L-shaped pipe is provided in the water tank, one end of the L-shaped pipe is connected to the cavity in the mixing drum, and the other end is arranged near the bottom of the water tank, and a high-pressure exhaust fan is provided on the top of the water tank.

[0007] By adopting the above technical solution, a mixing drum, a feed hopper, a discharge port, a stirring rod, a water tank, an L-shaped pipe, and a high-pressure exhaust fan are arranged. The raw materials enter the mixing drum from the feed hopper, and the rotating shaft is driven to rotate by the stirring motor, thereby driving the stirring rod to rotate to stir the raw materials in the mixing drum, and the stirred materials are discharged from the discharge port; there is water in the water tank that covers one end of the L-shaped pipe near the bottom of the water tank, but the water level is not higher than half of the height of the water tank to prevent water from splashing onto the high-pressure exhaust fan. When the raw materials enter the mixing drum from the feed hopper and during the stirring process, the water in the water tank is sucked away by the high-pressure exhaust fan. The air in the mixing drum makes the water tank in a negative pressure state. At this time, the air in the mixing drum will enter the water tank through the L-shaped pipe. After being filtered by water, the dust in the air will be filtered out and then discharged through the high-pressure exhaust fan. At this time, the mixing drum is also in a negative pressure state. The outside air enters the mixing drum from the feed hopper. The air brings the dust floating at the feed hopper into the mixing drum, effectively suppressing the dust from drifting to the external environment, greatly reducing the dust content in the air, reducing the pollution to the construction site and its surrounding environment, and avoiding the impact on the health of the staff.

[0008] Furthermore, the feed hopper is provided with a spray pipe, a plurality of spray heads are arranged at intervals on the spray pipe, the mixing drum is provided with a water pump, the water inlet of the water pump is connected to an external water source, the water outlet is provided with a delivery pipe, and the delivery pipe is connected to the spray pipe.

[0009] By adopting the above technical solution, a spray pipe, a spray head, a water pump and a delivery pipe are set up. Water is sent into the delivery pipe and the spray pipe by the water pump and then sprayed out from the spray head to absorb dust floating in the air, thereby further reducing the dispersion of dust.

[0010] Furthermore, the spraying direction of the spray head is toward the middle of the feed hopper.

[0011] By adopting the above technical solution, the spraying direction of the spray head is set to be toward the middle of the feed hopper, so that when the high-pressure exhaust fan is started, the spray absorbs the dust and is more easily sucked into the mixing drum.

[0012] Furthermore, a water inlet is arranged on the upper portion of the side wall of the water tank, and a water supply pipe connected with the water inlet is also arranged at the water outlet of the water pump.

[0013] By adopting the above technical solution, a water inlet is arranged on the upper part of the side wall of the water tank, and the water inlet is connected with the water outlet of the water pump through a water supply pipe, so as to facilitate adding water into the water tank.

[0014] Furthermore, water valves are provided on both the delivery pipe and the water delivery pipe.

[0015] By adopting the above technical solution, water valves are arranged on the delivery pipe and the water delivery pipe. With the help of the adjustment of the water valve, the water pumped out by the water pump can be controlled to flow to the spray head or the water tank or be supplied simultaneously, thereby realizing simple and efficient water supply, and only one water pump is needed to meet the water supply needs of the spray head and the water tank, thereby effectively saving costs.

[0016] Furthermore, a water outlet connected to the cavity in the mixing drum is provided at the bottom of the side wall of the water tank, and a fixed sleeve arranged coaxially with the water outlet is provided on the side wall of the water tank opposite to the water outlet, a control rod is slidably provided in the fixed sleeve, one end of the control rod is located outside the fixed sleeve, and the other end passes through the fixed sleeve and the water outlet and is provided with an end cover, the diameter of the water outlet is larger than the diameter of the control rod and smaller than the diameter of the end cover, a fixing hole is provided on the fixed sleeve, and a through hole is provided on the control rod, a latch is provided in the fixing hole, and the latch passes through the fixing hole and the through hole to fix the control rod.

[0017] By adopting the above technical scheme, a water outlet, a fixed sleeve, a control rod, a fixed hole, a through hole, and a latch are provided. The water in the water tank and the dust filtered by the water can be discharged into the mixing drum through the water outlet, so as to save water resources and avoid waste. The control rod is then used to control the end cover to fit or move away from the inner wall of the mixing drum, thereby controlling whether the water outlet drains water. When the end cover fits the inner wall of the mixing drum, the latch is used to pass through the fixed hole and the through hole to fix the control rod.

[0018] Furthermore, a sealing rubber ring is arranged in the fixed sleeve, the sealing rubber ring cooperates with the control rod, and an annular rubber ring is arranged on the side of the end cover adjacent to the water outlet.

[0019] By adopting the above technical solution, a sealing rubber ring is arranged in the fixed sleeve to prevent water in the water tank from flowing out of the fixed sleeve, and an annular rubber ring is arranged on the side of the end cover near the water outlet, so that the sealing effect is better after the end cover is closed, preventing water in the water tank from flowing out of the water outlet.

[0020] Furthermore, an upper observation port is provided on the upper part of the water tank side wall, and a lower observation port is provided on the lower part. A transparent observation tube is vertically provided on the outer side of the water tank, and the upper end of the transparent observation tube is connected to the upper observation port, and the lower end is connected to the lower observation port.

[0021] By adopting the above technical solution, an upper observation port, a lower observation port and an observation pipe are provided, and the water level in the water tank is observed through the observation pipe.

[0022] Furthermore, a plurality of scale lines are arranged on the side wall of the water tank corresponding to the observation tube intervals.

[0023] By adopting the above technical solution, a number of scale lines are arranged on the side wall of the water tank corresponding to the observation tube intervals, so as to facilitate observation of whether the water in the water tank reaches the standard water level.

[0024] In summary, the utility model has the following beneficial effects: in the present application, a mixing drum, a feed hopper, a discharge port, a stirring rod, a water tank, an L-shaped pipe, and a high-pressure exhaust fan are arranged; the raw materials enter the mixing drum from the feed hopper, and the rotating shaft is driven to rotate by a stirring motor, thereby driving the stirring rod to rotate to stir the raw materials in the mixing drum, and the stirred materials are discharged from the discharge port; there is water in the water tank that covers one end of the L-shaped pipe near the bottom of the water tank, but the water level is not higher than half the height of the water tank to prevent water from splashing onto the high-pressure exhaust fan; when the raw materials enter the mixing drum from the feed hopper and during the stirring process, the high-pressure exhaust fan The machine draws away the air in the water tank, making the water tank in a negative pressure state. At this time, the air in the mixing drum will enter the water tank through the L-shaped pipe. After being filtered by water, the dust in the air will be filtered out and then discharged through the high-pressure exhaust fan. At this time, the mixing drum is also in a negative pressure state, and the outside air enters the mixing drum from the feed hopper. The air brings the dust floating at the feed hopper into the mixing drum, effectively suppressing the dust from drifting to the external environment, greatly reducing the dust content in the air, reducing the pollution to the construction site and its surrounding environment, and avoiding effects on the health of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model;

[0026] Figure 2 It is a structural schematic diagram of another angle of the embodiment of the utility model;

[0027] Figure 3 yes Figure 2 AA cross-sectional diagram of ;

[0028] Figure 4 yes Figure 3 A magnified view of part A;

[0029] Figure 5 It is a schematic diagram of the internal structure of the mixing drum and the water tank of the embodiment of the utility model.

[0030] In the figure: 10, mixing drum; 11, discharge port; 12, feed hopper; 121, spray pipe; 122, spray head; 13, stirring motor; 14, rotating shaft; 15, stirring rod; 16, supporting leg; 20, dust removal assembly; 21, water tank; 211, water outlet; 212, upper observation port; 213, lower observation port; 214, scale line; 22, L-shaped pipe; 23, high-pressure exhaust fan; 24, fixing sleeve; 241, sealing rubber ring; 242, fixing hole; 243, latch; 25, control rod; 26, end cover; 261, annular rubber ring; 27, transparent observation tube; 30, water pump; 31, delivery pipe; 32, water delivery pipe; 33, water valve. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present application in conjunction with the drawings in the embodiments of the present application; it is obvious that the described embodiments are only part of the embodiments of the present application, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application without making creative work are within the scope of protection of the present application.

[0032] like Figure 1-5 As shown, an embodiment of the present application discloses a dust-free mixing equipment for a construction site, including a mixing drum for containing raw materials to be mixed. The mixing drum is provided with a dust removal component to quickly process the dust floating during the loading and mixing process, thereby reducing the pollution to the construction site and its surrounding environment.

[0033] Specifically, four supporting legs 16 are circumferentially arranged at the bottom of the mixing drum 10 for supporting the mixing drum 10. A feed hopper 12 is arranged on one side of the mixing drum 10 for pouring raw materials into the mixing drum 10. A discharge port 11 is arranged at the bottom of the mixing drum 10 for pouring out the raw materials after mixing. A valve is arranged on the discharge port 11 for controlling the opening or closing of the discharge port 11. A stirring motor 13 is vertically arranged at the top of the mixing drum 10, and a rotating shaft 14 is arranged on the output shaft of the stirring motor 13 downward, and a plurality of stirring rods 15 are arranged on the rotating shaft 14. The stirring motor 13 drives the rotating shaft 14 to rotate, thereby driving the stirring rods 15 to rotate to stir the raw materials in the mixing drum 10.

[0034] The dust removal assembly 20 includes a water tank 21 disposed on the mixing drum 10. The water tank 21 is used to contain water, but the water level is not higher than half the height of the water tank 21 to prevent water from splashing onto the high-pressure exhaust fan 23 during operation. An L-shaped tube 22 is provided in the water tank 21, one end of the L-shaped tube 22 is connected to the cavity in the mixing drum 10, and the other end is arranged near the bottom of the water tank 21. A high-pressure exhaust fan 23 is provided on the top of the water tank 21. When the raw materials enter the mixing drum 10 from the feed hopper 12 and during the mixing process, the air in the water tank 21 is sucked away by the high-pressure exhaust fan 23, so that the water tank 21 is in a negative pressure state. At this time, the air in the mixing drum 10 will enter the water tank 21 through the L-shaped tube 22. After being filtered by water, the dust in the air will be filtered out and then discharged through the high-pressure exhaust fan 23. At this time, the mixing drum 10 is also in a negative pressure state, and the outside air enters the mixing drum 10 from the feed hopper 12. The air brings the dust floating at the feed hopper 12 into the mixing drum 10, effectively suppressing the dust from drifting to the external environment, greatly reducing the dust content in the air, reducing the pollution to the construction site and its surrounding environment, and avoiding affecting the health of the staff. In the specific setting, a dispersion pipe can be connected to one end of the L-shaped pipe 22 near the bottom of the water tank 21, and a plurality of dispersion ports are opened on the dispersion pipe, so that air enters the water from the plurality of dispersion ports, which has a better filtering effect on the air.

[0035] A water pump 30 is provided on the mixing drum 10, and the water inlet of the water pump 30 is connected to an external water source. A three-way joint is provided at the water outlet 211 of the water pump 30, and one of the two water outlet ends of the three-way joint is connected to a water supply pipe 32, and the other is connected to a delivery pipe 31. A water inlet is provided on the upper part of the side wall of the water tank 21, and the water inlet is connected to the water supply pipe 32, so as to facilitate the addition of water to the water tank 21. A water outlet 211 is provided at the bottom of the side wall of the water tank 21, which is connected to the cavity in the mixing drum 10, so that the water in the water tank 21 can flow from the water tank 21 into the mixing drum 10. A fixed sleeve 24 arranged coaxially with the water outlet 211 is provided on the side wall of the water tank 21 opposite to the water outlet 211, and a control rod 25 is slidably provided in the fixed sleeve 24, and a sealing rubber ring 241 is provided in the fixed sleeve 24, and the sealing rubber ring 241 cooperates with the control rod 25 to prevent the water in the water tank 21 from flowing out of the fixed sleeve 24. One end of the control rod 25 is located outside the fixed sleeve 24, and the other end passes through the fixed sleeve 24 and the water outlet 211 and is provided with an end cover 26. The diameter of the water outlet 211 is larger than the diameter of the control rod 25 and smaller than the diameter of the end cover 26. The control rod 25 controls the end cover 26 to fit or move away from the inner wall of the mixing drum 10, thereby controlling whether the water outlet 211 drains water. An annular rubber ring 261 is provided on the side of the end cover 26 near the water outlet 211, so that the sealing effect is better after the end cover 26 is closed, and the water in the water tank 21 is prevented from flowing out of the water outlet 211. A fixing hole 242 is provided on the fixed sleeve 24, and a through hole is provided on the control rod 25. A latch 243 is provided in the fixing hole 242. When the end cover 26 fits the inner wall of the mixing drum 10, the latch 243 is used to pass through the fixing hole 242 and the through hole to fix the control rod 25.

[0036] An upper observation port 212 is provided at the upper part of the side wall of the water tank 21, and a lower observation port 213 is provided at the lower part. A transparent observation tube 27 is vertically provided on the outer side of the water tank 21. The upper end of the transparent observation tube 27 is connected to the upper observation port 212, and the lower end is connected to the lower observation port 213, so that the water level in the transparent observation tube 27 is consistent with the water level in the water tank 21, so that the water level in the water tank 21 can be observed through the observation tube. A number of scale lines 214 are provided on the side wall of the water tank 21 corresponding to the observation tube intervals, so as to facilitate observation of whether the water in the water tank 21 has reached the standard water level.

[0037] During the setting, spray pipes 121 are respectively arranged on both sides of the upper part of the feed hopper 12, and a plurality of spray heads 122 are arranged at intervals on the spray pipe 121. The delivery pipe 31 is connected to the spray pipe 121, and water is delivered to the delivery pipe 31 and the spray pipe 121 through the water pump 30, and then sprayed out from the spray head 122, so as to adsorb the dust floating in the air, and further reduce the dispersion of the dust. The spray head 122 sprays in the middle of the feed hopper 12, so that when the high-pressure exhaust fan 23 is started, the dust is more easily sucked into the mixing drum 10 after being sprayed and adsorbed. Water valves 33 are arranged on both the delivery pipe 31 and the water delivery pipe 32. By adjusting the water valve 33, the water pumped out by the water pump 30 can be controlled to flow to the spray head 122 or the water tank 21 or to be supplied at the same time, so as to realize the simplicity and efficiency of water supply, and only one water pump 30 is needed to meet the water supply requirements of the spray head 122 and the water tank 21, thereby effectively saving costs.

[0038] The use principle of a dust-free mixing device at a construction site in the present embodiment is as follows: first, open the water pump 30 and the water valve 33 on the water delivery pipe 32, and water flows into the water tank 21. The water level in the water tank 21 is observed through the transparent observation tube 27 and the scale line 214. After the water level reaches a suitable height, the water valve 33 on the water delivery pipe 32 is closed. After opening the water valve 33 and the high-pressure exhaust fan 23 on the delivery pipe 31, the raw materials are poured into the mixing drum 10 through the feed hopper 12. The water pumped out by the water pump 30 passes through the delivery pipe 31 and the spray pipe 121 and is sprayed out from the spray head 122 to absorb the dust floating in the air, thereby further reducing the dispersion of the dust. The high-pressure exhaust fan 23 draws away the air in the water tank 21, so that the water tank 21 is in a negative pressure state. At this time, the mixing drum 10 is filled with raw materials. Air will enter the water tank 21 through the L-shaped tube 22. After being filtered by water, the dust in the air will be filtered out and then discharged through the high-pressure exhaust fan 23. At this time, the mixing drum 10 is also in a negative pressure state, and the outside air enters the mixing drum 10 from the feed hopper 12. The air brings the dust floating in the feed hopper 12 into the mixing drum 10, effectively suppressing the dust from drifting to the external environment, greatly reducing the dust content in the air, reducing the pollution to the construction site and its surrounding environment, and avoiding affecting the health of the staff. Then, the stirring motor 13 is started to drive the rotating shaft 14 to rotate, thereby driving the stirring rod 15 to rotate to stir the raw materials in the mixing drum 10. After the stirring is completed, the valve is opened, and the stirred material is discharged from the discharge port 11.

[0039] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A dust-free mixing device for a construction site, comprising a mixing drum (10), wherein a feeding hopper (12) is arranged on one side of the mixing drum (10), a discharge port (11) is arranged at the bottom, a mixing motor (13) is arranged vertically on the top of the mixing drum (10), an output shaft of the mixing motor (13) is downwardly provided with a rotating shaft (14), and a plurality of mixing rods (15) are arranged on the rotating shaft (14), wherein the mixing drum (10) is characterized in that: The mixing drum (10) is provided with a dust removal assembly (20), the dust removal assembly (20) comprising a water tank (21) arranged on the mixing drum (10), an L-shaped tube (22) being arranged in the water tank (21), one end of the L-shaped tube (22) being connected to a cavity in the mixing drum (10), and the other end being arranged near the bottom of the water tank (21), and a high-pressure exhaust fan (23) being arranged on the top of the water tank (21).

2. A dust-free mixing equipment for construction sites according to claim 1, characterized in that: The feed hopper (12) is provided with a spray pipe (121), and a plurality of spray heads (122) are arranged at intervals on the spray pipe (121). The mixing drum (10) is provided with a water pump (30), and the water inlet of the water pump (30) is connected to an external water source, and the water outlet (211) is provided with a delivery pipe (31), and the delivery pipe (31) is communicated with the spray pipe (121).

3. A dust-free mixing equipment for construction sites according to claim 2, characterized in that: The spraying direction of the spray head (122) is toward the middle of the feed hopper (12).

4. The dust-free mixing equipment for construction sites according to claim 2 is characterized by: A water inlet is provided at the upper portion of the side wall of the water tank (21), and a water delivery pipe (32) communicating with the water inlet is also provided at the water outlet (211) of the water pump (30).

5. The dust-free mixing equipment for construction sites according to claim 4 is characterized in that: The delivery pipe (31) and the water delivery pipe (32) are both provided with water valves (33).

6. The dust-free mixing equipment for construction sites according to claim 1 is characterized by: The bottom of the side wall of the water tank (21) is provided with a water outlet (211) which is in communication with the cavity in the mixing drum (10); a fixed sleeve (24) which is arranged coaxially with the water outlet (211) is provided on the side wall of the water tank (21) opposite to the water outlet (211); a control rod (25) is slidably provided in the fixed sleeve (24); one end of the control rod (25) is located outside the fixed sleeve (24), and the other end passes through the fixed sleeve (24) and the outlet. The water outlet (211) is provided with an end cover (26); the diameter of the water outlet (211) is larger than the diameter of the control rod (25) and smaller than the diameter of the end cover (26); the fixing sleeve (24) is provided with a fixing hole (242); the control rod (25) is provided with a through hole; a latch (243) is provided in the fixing hole (242); the latch (243) passes through the fixing hole (242) and the through hole to fix the control rod (25).

7. The dust-free mixing equipment for construction sites according to claim 6 is characterized by: A sealing rubber ring (241) is arranged inside the fixed sleeve (24), and the sealing rubber ring (241) cooperates with the control rod (25). An annular rubber ring (261) is arranged on one side of the end cover (26) adjacent to the water outlet (211).

8. The dust-free mixing equipment for construction sites according to claim 1 is characterized by: The upper part of the side wall of the water tank (21) is provided with an upper observation port (212), and the lower part is provided with a lower observation port (213). A transparent observation tube (27) is vertically provided on the outer side of the water tank (21). The upper end of the transparent observation tube (27) is connected to the upper observation port (212), and the lower end is connected to the lower observation port (213).

9. The dust-free mixing equipment for construction sites according to claim 8 is characterized by: A plurality of scale lines (214) are arranged on the side wall of the water tank (21) at intervals corresponding to the observation tubes.

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