Dustproof device for concrete mixing equipment

Abstract

The utility model belongs to the technical field of dustproof devices, aims to solve the problem that dust inside and outside a mixing tank is difficult to fall synchronously in the prior art so as to improve the dustproof effect of concrete mixing equipment when the concrete mixing equipment is used, and particularly relates to a dustproof device for the concrete mixing equipment. Water in a limiting column is discharged into an annular pipe through a lower connecting pipe and then discharged through a plurality of water spraying holes in the annular pipe to wet continuously-fed concrete raw materials, dust flying is restrained, and the dustproof effect is achieved; and water flow is also discharged through an upper connecting pipe, water discharged through the upper connecting pipe enters an atomizing nozzle through a supporting pipe and is sprayed out through the atomizing nozzle to spray water to dust on the outer side of the stirring box, and the dust removal effect during concrete stirring is improved through synchronous dust removal.

Description

Technical Field

[0001] The utility model relates to the technical field of dustproof devices, in particular to a dustproof device for concrete mixing equipment. Background Art

[0002] Concrete mixing is the process of mixing cement, lime, water and other materials in appropriate proportions, mixing them evenly, compacting them and curing them to form artificial stone. Concrete mixing is widely used in my country's industrial, agricultural, transportation, national defense, water conservancy, municipal and other construction projects, and the demand is increasing. The existing concrete mixing device is prone to generate a lot of dust during the mixing process, causing the dust to float in the air or be inhaled into the body, which not only pollutes the environment, but also causes harm to construction workers and has low safety.

[0003] According to the patent document with patent number CN218398800U, in the device, the material dust inside the mixing barrel is sucked in and collected through the induced draft duct of the fan, and transferred in a sealed space to reduce the pollution caused by dust floating in the air to the environment. However, in the above device, in the process of first feeding the concrete raw materials and then stirring and mixing, there will be dust flying not only at the concrete raw material feeding point and in the mixing box, but also on the outside of the mixing box. It is difficult to simultaneously carry out dust reduction treatment on the dust inside and outside the mixing box to improve the dust prevention effect when the concrete mixing equipment is used.

[0004] In view of the above technical defects, a solution is now proposed. Utility Model Content

[0005] The utility model aims to provide a dust prevention device for concrete mixing equipment, which solves the problem that it is difficult to synchronously reduce dust inside and outside the mixing box in the prior art to improve the dust prevention effect of the concrete mixing equipment when in use.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A dust prevention device for concrete mixing equipment comprises a mixing box, a vertically arranged feeding pipe is fixedly inserted on one side of the top of the mixing box, a driving motor is fixedly arranged at the center of the top of the mixing box, a mixing shaft is fixedly arranged at the output end of the driving motor, one end of the mixing shaft extends into the mixing box, and the bottom end of the mixing shaft is rotatably connected to the mixing box through a bearing, two groups of mixing fans are arranged on the outer wall of the mixing shaft, a dust prevention mechanism is arranged above the mixing box, and a quantitative feeding mechanism is arranged below the inside of the mixing box;

[0008] The dust prevention mechanism includes a mounting plate fixedly connected to the top wall of the mixing box, a supporting tube is fixedly arranged above the mounting plate, an atomizing nozzle is arranged above the supporting tube, an annular tube is arranged on the circumferential inner wall of the feeding tube, a plurality of water spray holes are opened on the circumferential inner wall inside the annular tube, the supporting tube and the annular tube are connected by a regulating component, a water pump is fixedly arranged on the top wall of the mixing box, the input end of the water pump is connected to a water suction pipe, and the output end of the water pump is arranged with a water supply pipe.

[0009] Furthermore, the regulating component includes a limit column fixedly connected to the mounting plate, a cavity is opened inside the limit column, the input end of the limit column is connected to the water supply pipe, a lower connecting pipe is inserted on the outer wall on one side of the limit column, the output end of the lower connecting pipe is connected to the annular pipe, and an upper connecting pipe is inserted on the outer wall on the other side of the limit column, the output end of the upper connecting pipe is connected to the support pipe.

[0010] Furthermore, a piston is slidably arranged inside the limiting column, and the piston is located between the upper connecting pipe and the lower connecting pipe. A side wall of the piston away from the water supply pipe is connected to the inner wall of the limiting column through a thrust spring.

[0011] Furthermore, a water tank is provided at the input end of the water pumping pipe, and the output end of the water supply pipe is connected to the regulating component.

[0012] Furthermore, the quantitative unloading mechanism includes a connecting sleeve fixedly connected to the bottom side wall of the stirring shaft, a connecting plate is fixedly provided on the side wall of the connecting sleeve, an arc plate is provided at the end of the connecting plate away from the connecting sleeve, the arc plate is slidably matched with the inner side wall of the stirring box, and a discharge pipe is fixedly inserted on the bottom side wall of the stirring box, and the arc plate cooperates with the discharge pipe.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] In the utility model, by controlling the operation of the water pump, the water in the water tank is sucked through the water suction pipe and then discharged into the limiting column through the water supply pipe, the water in the limiting column is discharged into the annular pipe through the lower connecting pipe, and then discharged through a plurality of water spray holes on the annular pipe to wet the continuously fed concrete raw materials, thereby suppressing the flying of dust and achieving a dust prevention effect. When the dust on the outside of the mixing equipment is large, the water pressure of the water pump is increased during drainage, so that the water speed pushes the piston, and the water is discharged through the upper connecting pipe and the lower connecting pipe. The water discharged from the upper connecting pipe enters the atomizing nozzle through the supporting pipe, and is sprayed out through the atomizing nozzle to spray water to reduce dust on the dust on the outside of the mixing box, and the dust reduction is synchronized to improve the dust prevention effect during concrete mixing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to facilitate the understanding of those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings;

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

[0017] Figure 2 It is a three-dimensional diagram of the dust-proof mechanism in the utility model;

[0018] Figure 3 It is a front view of the control component in the utility model;

[0019] Figure 4 This is a schematic diagram of the internal structure of the mixing box in the utility model;

[0020] Figure 5 It is a stereoscopic diagram of the quantitative feeding mechanism in the utility model.

[0021] 1. Mixing box; 2. Feeding pipe; 3. Driving motor; 4. Mixing shaft; 5. Mixing fan; 61. Connecting sleeve; 62. Connecting plate; 63. Arc plate; 64. Discharging pipe; 7. Dust-proof mechanism; 71. Water tank; 72. Water pump; 73. Suction pipe; 74. Water supply pipe; 75. Mounting plate; 76. Support pipe; 77. Atomizing nozzle; 78. Control assembly; 781. Limiting column; 782. Thrust spring; 783. Piston; 79. Upper connecting pipe; 710. Lower connecting pipe; 711. Ring pipe; 712. Water spray hole. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0023] Embodiment 1:

[0024] like Figure 1-5 As shown, a dust prevention device for concrete mixing equipment proposed in this embodiment includes a mixing box 1, a vertically arranged feeding pipe 2 is fixedly inserted on one side of the top of the mixing box 1, a driving motor 3 is fixedly arranged at the center of the top of the mixing box 1, a mixing shaft 4 is fixedly arranged at the output end of the driving motor 3, one end of the mixing shaft 4 extends into the mixing box 1, and the bottom end of the mixing shaft 4 is rotatably connected to the mixing box 1 through a bearing, two groups of mixing fans 5 are arranged on the outer wall of the mixing shaft 4, a dust prevention mechanism 7 is arranged above the mixing box 1, and a quantitative feeding mechanism is arranged below the inside of the mixing box 1;

[0025] Specifically, the driving motor 3 controls the stirring shaft 4 to rotate, and the stirring shaft 4 controls the two stirring fans 5 above it to rotate, so as to achieve the mixing process of the concrete in the mixing box 1;

[0026] The dust prevention mechanism 7 includes a mounting plate 75 fixedly connected to the top wall of the mixing box 1, a support pipe 76 is fixedly arranged above the mounting plate 75, an atomizing nozzle 77 is arranged above the support pipe 76, an annular pipe 711 is arranged on the circumferential inner wall of the feeding pipe 2, a plurality of water spray holes 712 are opened on the circumferential inner wall inside the annular pipe 711, the support pipe 76 and the annular pipe 711 are connected by a regulating component 78, a water pump 72 is fixedly arranged on the top wall of the mixing box 1, a water pumping pipe 73 is connected to the input end of the water pump 72, and a water supply pipe 74 is arranged at the output end of the water pump 72;

[0027] Specifically, a plurality of water spray holes 712 are arranged in a circular array relative to the center line of the annular tube 711;

[0028] The water in the water tank 71 is sucked out through the pumping pipe 73 and then discharged into the limiting column 781 through the water supply pipe 74. The water in the limiting column 781 is discharged into the annular pipe 711 through the lower connecting pipe 710, and then discharged through a plurality of water spray holes 712 on the annular pipe 711 to wet the continuously fed concrete raw materials and suppress dust from flying.

[0029] The regulating component 78 includes a limit column 781 fixedly connected to the mounting plate 75, a cavity is opened inside the limit column 781, the input end of the limit column 781 is connected to the water supply pipe 74, a lower connecting pipe 710 is inserted into the outer wall on one side of the limit column 781, the output end of the lower connecting pipe 710 is connected to the annular pipe 711, and an upper connecting pipe 79 is inserted into the outer wall on the other side of the limit column 781, and the output end of the upper connecting pipe 79 is connected to the support pipe 76.

[0030] A piston 783 is slidably disposed in the limiting column 781. The piston 783 is located between the upper connecting pipe 79 and the lower connecting pipe 710. A side wall of the piston 783 away from the water supply pipe 74 is connected to the inner wall of the limiting column 781 through a thrust spring 782.

[0031] Specifically, when the flow rate of the water pump 72 does not increase, the thrust of the thrust spring 782 is greater than the water pressure of the water flow, thereby preventing the water flow from being discharged through the upper connecting pipe 79. When the water flow rate pressure of the water pump 72 increases, the thrust of the thrust spring 782 is less than the water pressure of the water flow, thereby causing the water flow to be discharged through the upper connecting pipe 79 as well, thereby simultaneously achieving a dust-proof effect inside and outside the mixing box 1.

[0032] When the dust outside the mixing equipment is large, the water pressure of the water pump 72 is increased during drainage, so that the water speed pushes the piston 783, and the water flow is also discharged through the upper connecting pipe 79. The water enters the atomizing nozzle 77 through the support pipe 76, and is sprayed out through the atomizing nozzle 77 to spray water and reduce dust on the outside of the mixing box 1, thereby further improving the dust prevention effect during concrete mixing.

[0033] The input end of the water pumping pipe 73 is provided with a water tank 71 , and the output end of the water supply pipe 74 is connected to the regulating component 78 .

[0034] Embodiment 2:

[0035] like Figure 1 , 4 -5, a dust prevention device for concrete mixing equipment proposed in this embodiment is improved on the basis of embodiment 1, and the quantitative discharge mechanism includes a connecting sleeve 61 fixedly connected to the bottom side wall of the mixing shaft 4, a connecting plate 62 is fixedly arranged on the side wall of the connecting sleeve 61, and an arc plate 63 is arranged at one end of the connecting plate 62 away from the connecting sleeve 61, and the arc plate 63 is slidably matched with the inner side wall of the mixing box 1, and a discharge pipe 64 is fixedly inserted on the bottom side wall of the mixing box 1, and a valve is arranged on the outer wall of the discharge pipe 64 to control the discharge of concrete, and the arc plate 63 is matched with the discharge pipe 64;

[0036] Specifically, after the mixing of the concrete in the mixing box 1 is completed, the valve on the discharge pipe 64 is opened. At this time, the mixing shaft 4 drives the arc plate 63 to rotate on the inner wall of the mixing box 1 through the connecting sleeve 61 and the connecting plate 62, and the arc plate 63 intermittently blocks the discharge pipe 64, so that the concrete raw materials in the mixing box 1 are intermittently discharged, which is convenient for replacing the tools for holding concrete.

[0037] The working process and principle of the utility model are as follows:

[0038] The concrete raw materials are put into the mixing box 1 through the feeding pipe 2. At this time, the water pump 72 is controlled to work, and the water in the water tank 71 is sucked through the pumping pipe 73 and then discharged into the limiting column 781 through the water supply pipe 74. The water in the limiting column 781 is discharged into the annular pipe 711 through the lower connecting pipe 710, and then discharged through the plurality of water spray holes 712 on the annular pipe 711 to wet the continuously fed concrete raw materials, suppress dust flying, and play a dust prevention effect. At the same time, the driving motor 3 is controlled The stirring shaft 4 drives the stirring fan 5 to stir and mix the concrete raw materials in the mixing box 1; when the dust outside the mixing equipment is large, the water pressure of the water pump 72 is increased during drainage, so that the water speed pushes the piston 783, and the water is discharged through the upper connecting pipe 79 and the lower connecting pipe 710. The water discharged from the upper connecting pipe 79 enters the atomizing nozzle 77 through the supporting pipe 76, and is sprayed out through the atomizing nozzle 77 to spray water and reduce dust on the outside of the mixing box 1, thereby further improving the dust prevention effect during concrete mixing.

[0039] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A dust prevention device for concrete mixing equipment, comprising a mixing box (1), a vertically arranged feeding pipe (2) is fixedly inserted on one side of the top of the mixing box (1), a driving motor (3) is fixedly arranged at the center of the top of the mixing box (1), a mixing shaft (4) is fixedly arranged at the output end of the driving motor (3), one end of the mixing shaft (4) extends into the mixing box (1), and the bottom end of the mixing shaft (4) is rotatably connected to the mixing box (1) through a bearing, and two groups of mixing fans (5) are arranged on the outer wall of the mixing shaft (4), characterized in that: A dust prevention mechanism (7) is provided above the mixing box (1), and a quantitative material discharge mechanism is provided below the mixing box (1); The dust prevention mechanism (7) comprises a mounting plate (75) fixedly connected to the top wall of the mixing box (1); a support pipe (76) is fixedly arranged above the mounting plate (75); an atomizing nozzle (77) is arranged above the support pipe (76); an annular pipe (711) is arranged on the circumferential inner wall of the feeding pipe (2); a plurality of water spray holes (712) are opened on the circumferential inner wall inside the annular pipe (711); the support pipe (76) and the annular pipe (711) are connected via a regulating component (78); a water pump (72) is fixedly arranged on the top wall of the mixing box (1); an input end of the water pump (72) is connected to a water pump (73); and an output end of the water pump (72) is arranged with a water supply pipe (74).

2. A dust prevention device for concrete mixing equipment according to claim 1, characterized in that: The regulating component (78) comprises a limiting column (781) fixedly connected to the mounting plate (75); a cavity is provided inside the limiting column (781); an input end of the limiting column (781) is connected to the water supply pipe (74); a lower connecting pipe (710) is inserted on the outer wall of one side of the limiting column (781); an output end of the lower connecting pipe (710) is connected to the annular pipe (711); an upper connecting pipe (79) is inserted on the outer wall of the other side of the limiting column (781); and an output end of the upper connecting pipe (79) is connected to the support pipe (76).

3. A dust prevention device for concrete mixing equipment according to claim 2, characterized in that: A piston (783) is slidably disposed inside the limiting column (781), and the piston (783) is located between the upper connecting pipe (79) and the lower connecting pipe (710). A side wall of the piston (783) away from the water supply pipe (74) is connected to the inner wall of the limiting column (781) via a thrust spring (782).

4. A dust prevention device for concrete mixing equipment according to claim 1, characterized in that: The input end of the water pumping pipe (73) is provided with a water tank (71), and the output end of the water supply pipe (74) is connected to the regulating component (78).

5. A dust prevention device for concrete mixing equipment according to claim 1, characterized in that: The quantitative unloading mechanism comprises a connecting sleeve (61) fixedly connected to the bottom side wall of the stirring shaft (4); a connecting plate (62) is fixedly arranged on the side wall of the connecting sleeve (61); an arc plate (63) is arranged at one end of the connecting plate (62) away from the connecting sleeve (61); the arc plate (63) is slidably matched with the inner side wall of the stirring box (1); a discharge pipe (64) is fixedly inserted on the bottom side wall of the stirring box (1); the arc plate (63) is matched with the discharge pipe (64).

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