Full-automatic water mist wall dust fall system for earthwork

Abstract

The utility model discloses a kind of earthwork operation full-automatic water mist wall dust fall system, including water inlet main pipe, water inlet is equipped with booster water pump;Several sub-pipes are connected in parallel on the outlet pipe of booster water pump;Each sub-pipe is evenly arranged on foundation pit guardrail, and several sub-pipes are distributed on the outer periphery of earthwork foundation pit;Timing switch is installed on each sub-pipe, when being in the predetermined time period of timing switch, the nozzle on the sub-pipe where timing switch is located sprays water mist to earthwork foundation pit;The utility model distributes sub-pipe on the outer periphery of earthwork foundation pit, and installs timing switch on each sub-pipe, can carry out dust fall to earthwork foundation pit according to pre-set time period, realizes dust fall on demand according to construction condition.

Description

Technical Field

[0001] This utility model belongs to the technical field of dust suppression equipment for earthmoving operations, and in particular relates to a fully automatic water mist wall dust suppression system for earthmoving operations. Background Technology

[0002] Earthwork operations at construction sites (especially 3:7 lime-soil backfilling) are high-dust operations, and effective dust suppression measures must be taken.

[0003] Traditional dust suppression methods involve manual hand-held water hoses, requiring two people to operate. Later, water trucks were used for dust suppression, with overlapping operations, but mud clumps easily formed on-site, resulting in poor effectiveness. Fog cannons were also used for dust suppression, but they frequently caused short circuits in the water and electricity supply, requiring frequent maintenance by electricians. Utility Model Content

[0004] The purpose of this invention is to provide a fully automatic water mist wall dust suppression system for earthwork operations, which can suppress dust as needed according to the construction situation.

[0005] The present invention adopts the following technical solution: a fully automatic water mist wall dust suppression system for earthwork operations, including a main water inlet pipe and a booster water pump installed on the main water inlet pipe; Several sub-pipes are connected in parallel on the outlet pipe of the booster pump; Each sub-pipeline is laid on the foundation pit guardrail, and several sub-pipelines cover the outer perimeter of the earthwork foundation pit. Each sub-pipe is equipped with a timer switch. When the timer switch is in its designated time period, the nozzle on the sub-pipe where the timer switch is located sprays water mist into the earthwork pit.

[0006] The beneficial effects of this utility model are: by laying sub-pipelines around the perimeter of the earthwork foundation pit and installing timer switches on each sub-pipeline, dust suppression of the earthwork foundation pit can be carried out according to a pre-set time period, thus realizing dust suppression as needed according to the construction situation. Attached Figure Description

[0007] Figure 1 This is a schematic diagram of the structure of a fully automatic water mist wall dust suppression system for earthmoving operations according to this utility model.

[0008] The components are: 10. Main water inlet pipe; 20. Booster pump; 30. Distribution box; 40. Timer switch; 50. Water supply pipeline; 60. Pit guardrail; 70. Sprinkler head; 80. Pit. Detailed Implementation

[0009] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0010] This utility model discloses a fully automated water mist wall dust suppression system for earthmoving operations, such as... Figure 1As shown, the structure includes a main inlet pipe 10, on which a booster pump 20 is installed. Several sub-pipes are connected in parallel to the outlet pipe of the booster pump 20. Each sub-pipe is installed on the pit guardrail 60, and the sub-pipes cover the outer perimeter of the earthwork pit 80. Each sub-pipe is equipped with a timer switch 40. When the predetermined time period of the timer switch 40 is reached, the nozzle 70 on the sub-pipe containing the timer switch 40 sprays water mist into the earthwork pit 80. The booster pump 20 is also connected to a distribution box 30.

[0011] This utility model allows for dust suppression of the earthwork foundation pit 80 by laying sub-pipelines on the outer perimeter of the pit and installing timer switches 40 on each sub-pipeline, which can be done according to a pre-set time period, thus enabling dust suppression as needed based on the construction situation.

[0012] The foundation pit guardrail 60 is a core protective facility for ensuring the safety of foundation pit operations. It is used to isolate dangerous areas of the foundation pit and prevent personnel from falling or being struck by objects. Combining the foundation pit guardrail 60 with dust suppression water pipes can achieve the dual functions of "safety protection + dust control", which optimizes site layout and improves construction efficiency.

[0013] Dust suppression water pipes can be fixed to the uprights and crossbars of the guardrail, eliminating the need for separate pipe supports and reducing material consumption (such as steel pipes and fasteners) and labor costs. Avoiding the intersection of guardrails and independent pipe supports saves space around the excavation pit, making it particularly suitable for construction in confined spaces and improving the utilization rate of work access routes. The water pipes are laid along the full circumference of the guardrail, forming a ring-shaped spray belt that comprehensively covers the pit slope, work surface, and surrounding area, ensuring thorough dust suppression. Furthermore, no additional planning of the water pipe route is required; the spraying can be controlled according to the construction schedule to promptly suppress dust generated during excavation and transportation, meeting environmental protection and emission reduction requirements.

[0014] In one embodiment, a wind vane (not shown) is also included, which is located around the perimeter of the earthwork pit 80. The wind vane allows for random detection of wind direction changes around the pit, enabling the adjustment of the predetermined water mist spraying time based on these changes. For example, if spraying is detected as needed for the current time period and the wind direction is east, the timer switch on the sub-pipe on the west side of the earthwork pit 80 can be switched off to prevent the sprayed water mist from being blown outwards from the pit.

[0015] More specifically, several sub-pipelines are laid out around the outer perimeter of the earthwork pit 80, and the laying paths do not overlap. With this design, sprinklers 70 can be laid out around the outer perimeter of the earthwork pit 80, so as to carry out local dust suppression according to the wind direction and the earthwork backfill area, which can save the amount of water used for dust suppression.

[0016] Each sub-pipeline includes a water supply pipe 50, on which several nozzles 70 are evenly spaced. By evenly distributing the nozzles 70 on the water supply pipe 50 (e.g., installing one nozzle 70 with a spray range of 5m every 3.5m), the sprayed water mist can evenly cover the area that needs dust suppression, avoiding excessive local water volume that could cause mud clumps to form.

[0017] In addition, an anemometer (not shown in the figure) can be added. The combination of the wind vane and the anemometer can not only adjust the start and stop of the sub-pipeline, but also adjust the water pressure in the pipeline through the water pump to ensure that the sprayed water mist is sufficient to meet the dust suppression requirements.

[0018] In one embodiment, the sub-pipelines can be divided into more numbers, such as southeast, northeast, southwest, and northwest. When wind speed and wind direction are detected, the nozzles in the direction opposite to the wind direction are closed, while the other nozzles 70 are opened. That is, all timer switches 40 are not turned on at the same time, so that the expected dust reduction standard can be achieved.

[0019] In terms of economic costs, the cost of traditional dust suppression is: 260 yuan per water truck shift + 2 people watering by hand at 220 yuan per day = 700 yuan. The operation lasts for 10 days, and the total cost is 7,000 yuan.

[0020] This utility model dust removal system utilizes idle materials and existing facilities as support frames (surrounding guardrails), saving material costs. The labor cost for pipe installation is 4 workers * 220 yuan / man-day = 880 yuan. The earthwork savings for each unit project are 7000 yuan - 880 yuan = 6120 yuan. The Wangfeng Coal Mine coal preparation plant has 30 unit projects requiring earthwork, generating a total economic benefit of 6120 yuan * 30 = 183600 yuan.

[0021] In summary, this utility model of a fully automatic water mist wall dust suppression system is applied to earthwork operations. It activates the spray at regular intervals to completely seal off dust, achieving a dust control compliance rate at the construction site that meets the needs of customers and stakeholders. It has a good dust suppression effect and effectively improves the level of refined supervision of dust pollution at construction sites.

Claims

1. A fully automated water mist wall dust suppression system for earthmoving operations, characterized in that, Includes a main water inlet pipe (10), on which a booster water pump (20) is installed; The booster pump (20) has several sub-pipes connected in parallel on its outlet pipe; Each of the sub-pipelines is laid on the pit guardrail (60), and several sub-pipelines cover the outer perimeter of the earthwork pit (80); Each of the sub-pipes is equipped with a timer switch (40). When the timer switch (40) is in a predetermined time period, the nozzle (70) on the sub-pipe where the timer switch (40) is located sprays water mist into the earthwork pit (80).

2. The fully automatic water mist wall dust suppression system for earthmoving operations as described in claim 1, characterized in that, It also includes a wind vane, which is set on the outer periphery of the earthwork pit (80).

3. The fully automatic water mist wall dust suppression system for earthmoving operations as described in claim 2, characterized in that, Each of the sub-pipelines includes a water supply pipeline (50), on which a plurality of the nozzles (70) are evenly spaced.

4. The fully automatic water mist wall dust suppression system for earthmoving operations as described in claim 3, characterized in that, Several of the sub-pipelines are laid out around the outer perimeter of the earthwork pit (80), and the laying paths do not overlap.

5. A fully automated water mist wall dust suppression system for earthmoving operations as described in claim 3 or 4, characterized in that, All of the timer switches (40) are not turned on at the same time.

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