Dust-proof device for powder spraying pile

Abstract

The utility model relates to a dust-proof device for a powder spraying pile, which comprises a collecting component and a control component, at least one group of annular collecting channels are arranged on the inner side wall of the collecting component, and at least one group of pipe orifice parts communicated with the collecting channels are arranged on the outer side wall of the collecting component; the control assembly comprises an electric control cabinet, a dust removal unit and an electric control air valve, the dust removal unit is communicated with a pipe opening part of the collection assembly through a ventilation pipeline, the electric control air valve is installed on the ventilation pipeline, and the electric control cabinet is electrically connected with the dust removal unit and the electric control air valve; the dust collecting device is reasonable in structural design, the effect of collecting flying dust at the position of a powder spraying pile operation opening is achieved by adopting the collecting assembly with multi-stage working intensity and the control assembly used for controlling the working intensity of the collecting assembly, different operation modes can be selected in the collecting process according to the actual situation, and the dust collecting efficiency is improved on the premise that the operation effect is guaranteed. The energy consumption is effectively controlled, and the whole system is more environment-friendly.

Description

Technical Field

[0001] The utility model relates to the technical field of foundation construction equipment, in particular to a dust prevention device for powder injection piles. Background Art

[0002] In the traditional powder injection pile construction process, the spraying of powder is prone to dust raising, which not only damages the working environment of the construction site, but also affects the health of the workers. It also reduces the visual effect of the construction site, thus affecting the safety of the powder injection pile construction. The dust raising problem is a long-standing problem in many construction projects.

[0003] To solve this problem, some technical means have been proposed to reduce or eliminate the dust raising phenomenon. For example, some methods improve the adhesion of powder by increasing the self-adhesiveness of powder particles or by adding adhesives. However, these methods often require the use of additional materials or add complex processes, thereby increasing construction costs or time.

[0004] In addition, there are some technologies that attempt to reduce dust emission by changing nozzle design or controlling injection parameters. However, these methods have problems such as complex operation, difficult debugging, and instability, and cannot effectively solve the dust emission problem.

[0005] Therefore, it is necessary to provide a new technical means to effectively reduce or eliminate the dust problem generated during the construction of powder injection piles, improve the working conditions of the construction environment, protect the health of workers, and improve the visual effect and safety of the construction. Summary of the invention

[0006] In order to solve the deficiencies in the prior art, the utility model aims to provide a dust prevention device for powder injection piles, which is used to reduce dust generated during the injection process of powder injection piles and improve the on-site working environment.

[0007] The technical solution adopted by the utility model to solve its technical problems is:

[0008] A dust prevention device for powder injection piles, comprising a collecting component and a control component, characterized in that:

[0009] The collecting assembly adopts a circular cylindrical shell structure, the top and bottom surfaces of the collecting assembly are both open structures, at least one group of annular collecting channels are provided on the inner side wall of the collecting assembly, and at least one group of nozzles communicating with the collecting channels are provided on the outer side wall of the collecting assembly;

[0010] The control component includes an electric control cabinet, a dust removal unit and an electric control air valve. The dust removal unit is connected to the pipe mouth of the collection component through a ventilation duct, and the electric control air valve is installed on the ventilation duct. The electric control cabinet is electrically connected to the dust removal unit and the electric control air valve respectively.

[0011] The dust removal unit comprises a dust collector and a fan. The fan is a variable frequency fan and is electrically connected to the electric control cabinet via a frequency converter.

[0012] The collecting channels are arranged in multiple groups from bottom to top, and adjacent collecting channels are separated by partitions.

[0013] The partition plate is a curved plate, and the opening position of the collection channel cross section is a highly contracted trumpet-shaped structure.

[0014] At least two groups of nozzles connected to the collecting channel are provided on the outer side wall of the collecting assembly, the ventilation ducts between the nozzles and the dust removal unit are separately arranged, and the electrically controlled air valve is provided on the ventilation duct connected to each group of nozzles.

[0015] An inner flange is provided on the inner side of the opening of the bottom surface of the collecting component, and an anchoring hole is provided on the inner flange.

[0016] The beneficial effects of the utility model are: reasonable structural design, by adopting a collection component with multi-level working strength, and a control component for controlling the working strength of the collection component, the effect of collecting dust at the powder injection pile operation port is achieved, and the collection process can select different operation modes according to actual conditions, and effectively control its energy consumption while ensuring the operation effect, and the entire system is more environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0018] Figure 1 A schematic diagram of the structure of the collection component.

[0019] Figure 2 A schematic diagram of the cross-sectional structure of the collection component.

[0020] Figure 3 It is a system schematic diagram of the utility model.

[0021] In the figure: 100 collecting component, 101 anchoring hole, 102 collecting channel, 103 pipe mouth, 200 electric control air valve, 300 ventilation duct, 400 dust removal unit, 401 dust collector, 402 fan, 500 inverter, 600 electric control cabinet. DETAILED DESCRIPTION

[0022] The following is a description of the implementation of the present invention by means of specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0023] according to Figures 1 to 3As shown: This embodiment provides a dust prevention device for powder spray piles, including a collecting component 100 and a control component; wherein the collecting component 100 adopts a single mechanical component, which is mainly installed at the operation port of the powder spray pile to collect dust, and the control component includes an electric control cabinet 600, a dust removal unit 400 and an electric control air valve 200, and the electric control cabinet 600 is electrically connected to the dust removal unit 400 and the electric control air valve 200 respectively, and the control component cooperates with the collecting component 100 to process the collected dust and achieve the use effect of multi-level control, energy saving and environmental protection; the specific implementation structure and effect of the collecting component 100 and the control component are described as follows.

[0024] The collecting assembly 100 adopts a circular cylindrical shell structure, and the top and bottom surfaces of the collecting assembly 100 are both open structures. An inner flange is provided on the inner side of the opening of the bottom surface of the collecting assembly 100, and an anchor hole 101 is provided on the inner flange. When in use, the collecting assembly 100 can be placed at the edge of the powder injection pile operation port, and the collecting assembly 100 is fixed at the anchor hole 101 by an anchor rod, so that the dust generated at the powder injection pile operation port is discharged through the inside of the collecting assembly 100;

[0025] Two groups of annular collecting channels 102 are provided on the inner side wall of the collecting assembly 100, and the two groups of collecting channels 102 are separated by a partition. At the same time, the partition adopts a curved plate, and the opening position of the cross section of the collecting channel 102 is a highly contracted trumpet-shaped structure, so that the internal space of each group of collecting channels 102 is relatively large, but the opening position is relatively small, which can increase the wind pressure and wind speed at the opening position, thereby achieving a better dust collection effect; during the operation process, when the dust leaves the operation opening position of the powder injection pile, the dust can be collected by the opening position of the collecting channel 102, thereby preventing the dust from leaving the working environment of the polluted site, which is beneficial to the health of workers and the safety of the operation;

[0026] Correspondingly, a pipe mouth portion 103 connected to the collecting channel 102 is provided on the outer side wall of the collecting component 100, wherein the pipe mouth portion 103 of the collecting channel 102 located at the upper part is a group, and the pipe mouth portion 103 of the collecting channel 102 located at the lower part is two groups. Since the lower collecting channel 102 is close to the powder injection pile operation port, it is used as the main collection purpose. The two groups of pipe mouth portions 103 can increase its negative pressure collection intensity. At the same time, the operating intensity of the two groups of pipe mouth portions 103 can be adjusted according to actual conditions to meet the operating needs on the basis of energy saving.

[0027] In order to cooperate with the above-mentioned collection component 100, on the premise of meeting the dust control on site, the requirements of energy saving and environmental protection should also be considered. The dust removal unit 400 is connected with the nozzle part 103 of the collection component 100 through the ventilation duct 300, and the ventilation duct 300 is installed with the electric control air valve 200, and the electric control air valve 200 is set in a one-to-one correspondence with the nozzle part 103. In this way, the opening size and working intensity of each nozzle part 103 can be controlled by the electric control air valve 200, especially the two groups of nozzle parts 103 located in the lower collection channel 102, the working intensity can be adjusted in a wide range, and it is more flexible to use to meet different dust collection intensities;

[0028] At the same time, the dust removal unit 400 includes a dust collector 401 and a fan 402. The fan 402 adopts a variable frequency fan and is electrically connected to the electric control cabinet 600 through a frequency converter 500. Under the adjustable control effect of the electric control air valve 200, the operating intensity of the fan 402 can also be controlled by the frequency converter 500 to achieve a dual adjustment effect, so that the opening of the electric control air valve 200 matches the power of the fan 402, and the two work together to save energy and protect the environment. The electric control cabinet 600 in this embodiment is modified based on the electric control system of the dust removal unit 400, so that it is linked with the electric control air valve 200, and the corresponding control program can be written through the PLC controller without the need for additional configuration, thereby reducing the production cost of the product.

[0029] The above description is only a preferred implementation mode of the present utility model. As long as the technical solution of the purpose of the present utility model is achieved by basically the same means, it belongs to the protection scope of the present utility model.

Claims

1. A dust prevention device for powder injection piles, comprising a collecting component and a control component, characterized in that: The collecting assembly adopts a circular cylindrical shell structure, the top and bottom surfaces of the collecting assembly are both open structures, at least one group of annular collecting channels are provided on the inner side wall of the collecting assembly, and at least one group of nozzles communicating with the collecting channels are provided on the outer side wall of the collecting assembly; The control component includes an electric control cabinet, a dust removal unit and an electric control air valve. The dust removal unit is connected to the pipe mouth of the collection component through a ventilation duct, and the electric control air valve is installed on the ventilation duct. The electric control cabinet is electrically connected to the dust removal unit and the electric control air valve respectively.

2. A dust prevention device for powder injection piles according to claim 1, characterized in that: The dust removal unit comprises a dust collector and a fan. The fan is a variable frequency fan and is electrically connected to the electric control cabinet via a frequency converter.

3. A dust prevention device for powder injection piles according to claim 1, characterized in that: The collecting channels are arranged in multiple groups from bottom to top, and adjacent collecting channels are separated by partitions.

4. A dust prevention device for powder injection piles according to claim 3, characterized in that: The partition plate is a curved plate, and the opening position of the collection channel cross section is a highly contracted trumpet-shaped structure.

5. A dust prevention device for powder injection piles according to claim 1, characterized in that: At least two groups of nozzles connected to the collecting channel are provided on the outer side wall of the collecting assembly, the ventilation ducts between the nozzles and the dust removal unit are separately arranged, and the electrically controlled air valve is provided on the ventilation duct connected to each group of nozzles.

6. A dust prevention device for powder injection piles according to claim 1, characterized in that: An inner flange is provided on the inner side of the opening of the bottom surface of the collecting component, and an anchoring hole is provided on the inner flange.

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