Dustproof device for building demolition construction

Abstract

The utility model belongs to the technical field of dustproof devices, and particularly relates to a dustproof device for building demolition construction, which comprises a main body, a blower device, a dust suction device and an ash discharge device, the blower device is mounted at the top end of the main body, the dust suction device and the ash discharge device are mounted at the bottom of the main body, and the ash discharge device is positioned below the dust suction device. According to the dustproof device for building demolition construction, through cooperation of the main body, the blower device and the dust suction device, downward high-pressure airflow is formed between every two adjacent air guide plates on the protective fence, and a large amount of dust and solid particles generated within a short time when a building is demolited can be effectively sucked.

Description

Technical Field

[0001] The utility model belongs to the technical field of dustproof devices, and in particular relates to a dustproof device for building demolition construction. Background Art

[0002] Dust will be generated during the demolition process of buildings, especially when large buildings such as high-rise residential buildings and large condensation towers are demolished and collapsed, a large amount of dust and solid particles will be generated, damaging surrounding buildings and greenery, etc., and a large amount of dust entering the air will cause environmental pollution.

[0003] Chinese utility model patent CN208137600U discloses a municipal building fence that is easy to disassemble. Although the micro vacuum cleaner can absorb the dust generated during the building demolition process, the micro vacuum cleaner has limited dust absorption capacity and cannot effectively absorb the large amount of dust generated in a short period of time when the building collapses, especially the large building. Dust and solid particles will fly out from it, causing pollution to the environment. Utility Model Content

[0004] In view of the above-mentioned deficiencies existing in the prior art, the utility model provides a dust prevention device for building demolition construction, which is used to solve the technical problem that the prior art cannot absorb dust and solid particles generated during the demolition of buildings, especially large buildings.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A dust prevention device for building demolition construction, comprising:

[0007] A main body, including a guardrail and a hollow base mounted at the bottom of the guardrail;

[0008] The blower device is installed on the top of the main body and can generate downward high-pressure airflow;

[0009] The dust collecting device is installed at the bottom of the main body and can absorb and filter dust;

[0010] The ash discharge device is installed inside the base, and the ash discharge device is located below the dust collection device; a vertical downward wind guide plate for guiding airflow and dust is arranged on the side of the guardrail facing the demolished building, and the air blowing device includes an air inlet, a bellows, an air distribution pipe and an air distribution port. The bellows is installed on the side of the main body facing away from the demolished building, and the air inlet is fixedly connected to the bellows. One end of the air distribution pipe is connected to the bellows, and the other end extends to the top of the main body and is connected to the air distribution port on the side facing the demolished building. The air distribution port is installed between two wind guide plates connected to the guardrail, and high-pressure air is ejected from the air distribution port to form a downward high-pressure airflow between two adjacent wind shields under the action of the guardrail and the wind guide plate.

[0011] Furthermore, the upper part of the guardrail is arc-shaped.

[0012] Furthermore, the air distribution port is opened downward along the arc at the upper end of the guardrail.

[0013] Furthermore, the upper end of the base is open, and the bottom of the air guide plate cooperates with the upper end opening of the base.

[0014] Furthermore, the dust suction device includes a filter, a second baffle, a second bellows, a bag dust collector, an ash discharge pipe and an air outlet, the filter is arranged on the side of the base, and a second bellows is arranged at the position of the filter on the side of the main body facing away from the demolished building. The second bellows is connected to the bag dust collector installed on the side of the main body facing away from the demolished building through an air duct.

[0015] Furthermore, the bag dust collector is provided with an air outlet for connecting to the fan, and the bottom of the bag dust collector is provided with an ash discharge pipe for discharging dust, the end of the ash discharge pipe extends through the side wall of the base to the bottom of the first baffle, and a second baffle is also provided above the filter net.

[0016] Furthermore, the ash discharge device includes a conveyor belt, a transmission shaft, a third baffle and an ash discharge port. The transmission shaft is installed on the side wall of the base, the conveyor belt is installed around the transmission shaft, the conveyor belt and the transmission shaft are slidably matched, the conveyor belt is located below the first baffle, and an ash discharge port is also provided on the side wall of the base.

[0017] Furthermore, a scraper is provided on the conveyor belt.

[0018] Furthermore, the third baffle is tilted downward, with one end fixedly connected to the side wall of the base and located below the conveyor belt, and the other end of the third baffle is connected to the ash discharge port.

[0019] Furthermore, a first baffle plate inclined downward is provided below the air guide plate on one side of the main body, and the conveyor belt is located below the first baffle plate.

[0020] Compared with the prior art, the utility model has the following beneficial effects:

[0021] 1. The dust prevention device for building demolition construction disclosed by the utility model forms a downward high-pressure airflow between two adjacent air guide plates on the guardrail through the cooperation of the main body, the air blowing device and the dust suction device, which can effectively absorb a large amount of dust and solid particles generated in a short time during building demolition.

[0022] 2. This dust-proof device can be used in the early preparation work for building demolition when less dust is generated, or it can be used when demolishing buildings, and it can effectively absorb dust and solid particles.

[0023] 3. The upper end of the guardrail of the dustproof device is arc-shaped, which can effectively prevent the technical problem that some dust and solid particles fly out from the top of the dustproof device when they impact the guardrail. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the structure of a dust prevention device for building demolition construction according to the utility model;

[0025] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0026] Figure 3 It is a structural schematic diagram of the back side of the utility model.

[0027] The reference numerals involved in the accompanying drawings are:

[0028] 1. Main body; 1-1. Guardrail; 1-2. Base; 1-3. Wind guide plate; 1-4. First baffle; 2. Blowing device; 2-1. Air inlet; 2-2. Bellows 1; 2-3. Air distribution pipe; 2-4. Air distribution port; 3. Dust suction device; 3-1. Filter; 3-2. Second baffle; 3-3. Bellows 2; 3-4. Bag dust collector; 3-5. Ash discharge pipe; 3-6. Air outlet; 4. Ash discharge device; 4-1. Conveyor belt; 4-2. Drive shaft; 4-3. Second baffle; 4-4. Ash discharge port. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0030] like Figure 1 As shown, a dust prevention device for building demolition construction includes: a main body 1, an air blowing device 2, a dust collecting device 3 and an ash discharging device 4, wherein the air blowing device 2 is installed at the top of the main body 1, the dust collecting device 3 and the ash discharging device 4 are installed at the bottom of the main body 1, and the ash discharging device 4 is located below the dust collecting device 3.

[0031] like Figures 2 to 3 As shown, the main body 1 includes a guardrail 1-1, the upper part of the guardrail 1-1 is arc-shaped, which can prevent dust and solid particles generated by the demolition of the building from flying out from the upper part of the guardrail 1-1 when they impact the guardrail 1-1, and a hollow base 1-2 is installed below the guardrail 1-1, and a wind guide plate 1-3 for guiding airflow and dust is arranged on the side of the guardrail 1-1 facing the demolished building, and the bottom of the wind guide plate 1-3 is matched with the upper end opening of the base 1-2, and a first baffle 1-4 inclined downward is arranged below the wind guide plate 1-3 on one side of the main body 1, and the first baffle 1-4 can make the dust and solid particles falling from the upper part slide along the inclined direction thereof instead of falling directly below it.

[0032] The blowing device 2 includes a bellows 2-2, which is installed on the side of the main body 1 facing away from the demolished building. The bellows 2-2 is provided with an air inlet 2-1, which is connected to the blower. The bellows 2-2 is also provided with an air distribution pipe 2-3. The high-pressure air in the blower enters the bellows 2-2 through the air inlet 2-1, and enters the air distribution pipe 2-3 after being buffered by the bellows 2-2. The air distribution pipe 2-3 extends from the top of the main body 1 to the side of the main body 1 facing the demolished building. The end of the air distribution pipe 2-3 is fixedly connected with the air distribution port 2-1 for distributing air. 4. The air distribution port 2-4 is installed between the two wind guide plates 1-3 connected to the guardrail 1-1, and its opening is downward along the arc at the upper end of the guardrail 1-1. The high-pressure air in the air distribution pipe 2-3 is ejected from the air distribution port 2-4 and forms a downward high-pressure airflow between two adjacent wind shields under the action of the guardrail 1-1 and the wind guide plate 1-3. When the dust generated by the demolition of the building hits the guardrail 1-1, the high-speed airflow between the two adjacent wind guide plates 1-3 can carry the dust and some of the upward solid particles downward and move them into the dust collection device 3 and the dust discharge device 4.

[0033] The dust collecting device 3 includes a filter screen 3-1 arranged on the side wall of the base 1-2, and the filter screen 3-1 can prevent solid particles entering the base 1-2 from entering the bellows 2 3-3. The bellows 2 3-3 is arranged at the position of the filter screen 3-1 on the side of the main body 1 facing away from the demolished building. The bellows 2 3-3 is connected to the bag dust collector 3-4 installed on the side of the main body 1 facing away from the demolished building through an air duct. The bag dust collector 3-4 is also provided with an air outlet 3-6 for connecting to the fan. Under the action of the suction force of the fan, the dust can enter the bellows 2 3-3 through the filter screen 3-1 and then enter the bag dust collector through the air duct. In 3-4, after being filtered by the bag-type dust collector 3-4, the filtered clean air enters the fan through the air outlet 3-6 and is then discharged; the dust filtered by the bag-type dust collector 3-4 falls into the ash discharge pipe 3-5 at the bottom of the bag-type dust collector 3-4, and the end of the ash discharge pipe 3-5 passes through the side wall of the base 1-2 and extends to the bottom of the first baffle 1-4, and the dust in the ash discharge pipe 3-5 is discharged to the bottom of the first baffle 1-4 through the end of the ash discharge pipe 3-5; a second baffle 3-2 is also provided above the filter screen 3-1, and the second baffle 3-2 can prevent solid particles from directly falling onto the filter screen 3-1 and clogging the filter screen 3-1.

[0034] The ash discharging device 4 includes a conveyor belt 4-1, a transmission shaft 4-2, a third baffle 4-3 and an ash discharging port 4-4, wherein the transmission shaft 4-2 is installed on the side wall of the base 1-2, the conveyor belt 4-1 surrounds the two transmission shafts 4-2, the conveyor belt 4-1 and the transmission shaft 4-2 are slidably matched, and the transmission shaft 4-2 can drive the conveyor belt 4-1 to rotate. The conveyor belt 4-1 is located below the first baffle 1-4, and the dust and solid particles sliding down from the first baffle 1-4 will fall onto the conveyor belt 4-1 A scraper is provided on the conveyor belt 4-1; one end of the third baffle 4-3 is tilted downward and fixedly connected to the side wall of the base 1-2 below the conveyor belt 4-1, and the other end of the third baffle 4-3 is connected to the ash discharge port 4-4, and the ash discharge port 4-4 is provided on the base 1-2; the conveyor belt 4-1 drives the scraper to rotate, and takes away the solid particles and a small amount of dust that fall in front of the filter screen 3-1, and falls on the third baffle 4-3, and then slides from the third baffle 4-3 and is discharged from the ash discharge port 4-4.

[0035] When demolishing a building, multiple dust-proof devices are installed side by side around the building, and the air inlet 2-1 is connected to the blower, and the air outlet 3-6 is connected to the fan; the high-pressure air in the blower enters the bellows 2-2 for buffering through the air inlet 2-1, enters each air distribution pipe 2-3 from the bellows 2-2, and is ejected from the air distribution port 2-4 at the end of the air distribution pipe 2-3, and forms a downward high-pressure airflow between two adjacent air guide plates 1-3 under the action of the guardrail 1-1 and the air guide plate 1-3; when the dust and solid particles generated by the demolition of the building impact the guardrail 1-1, the dust and solid particles will move downward under the action of the downward high-pressure airflow without spreading, and cannot fly out from the top of the dust-proof device; under the action of the fan suction, the dust and solid particles carried by the high-pressure airflow enter the inside of the base 1-2; the dust and solid particles on one side of the main body 1 enter the base 1-2 and come into contact with the first baffle 1-4 , and slides down onto the conveyor belt 4-1 along the inclined direction of the first baffle 1-4. Most of the dust and solid particles enter the base 1-2 under the action of suction and contact the second baffle 3-2, and slide down onto the conveyor belt 4-1 along the second baffle 3-2; after the solid particles fall onto the conveyor belt 4-1, they cannot pass through the filter 3-1, and are taken away by the conveyor belt 4-1 and fall onto the third baffle 4-3, and are then discharged from the ash discharge port 4-4; after passing through the filter 3-1, the dust enters the bellows 2 3-3 under the action of suction, and then enters the bag dust collector 3-4 through the air duct. The bag dust collector 3-4 filters the dust and air, and the filtered air enters the fan through the air outlet 3-6 and is then discharged. The dust falls into the ash discharge pipe 3-5 below the bag dust collector 3-4, and is then discharged from the end of the ash discharge pipe 3-5 to the third baffle 4-3 in the base 1-2, and is discharged from the ash discharge port 4-4, completing the dust prevention work during the building demolition construction.

[0036] During the preliminary preparations for demolishing a building, the amount of dust is small and will not impact the guardrail 1-1 together with solid particles. The air outlet 3-6 is connected to the fan. Under the action of the fan suction, air is sucked into the base 1-2 through the opening of the base 1-2, and a downward airflow can be formed between two adjacent air guide plates 1-3 on the guardrail 1-1. The airflow can carry dust into the base 1-2, and then enter the bellows 3-3 through the filter 3-1, and then enter the bag filter 3-4 through the air duct for filtration. The filtered air enters the fan through the air outlet 3-6 and is then discharged. The dust falls into the ash discharge pipe 3-5 below the bag filter 3-4, and then is discharged from the end of the ash discharge pipe 3-5 onto the third baffle 4-3 in the base 1-2 and discharged from the ash discharge port 4-4.

[0037] The above is only an embodiment of the utility model. The common sense such as the known specific structure and characteristics in the scheme is not described in detail here. The ordinary technicians in the relevant field are aware of all the common technical knowledge in the technical field of the utility model before the application date or priority date, can obtain all the existing technologies in the field, and have the ability to apply the conventional experimental means before that date. The ordinary technicians in the relevant field can improve and implement the scheme in combination with their own abilities under the enlightenment given by this application. Some typical known structures or known methods should not become obstacles for ordinary technicians in the relevant field to implement this application. It should be pointed out that for the technicians in this field, without departing from the structure of the utility model, several deformations and improvements can be made, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent.

Claims

1. A dust prevention device for building demolition construction, comprising: A main body (1) comprises a guardrail (1-1) and a hollow base (1-2) installed at the bottom of the guardrail (1-1); A blast device (2) is installed on the top of the main body (1) and can generate a downward high-pressure airflow; A dust collecting device (3) is installed at the bottom of the main body (1) and can absorb and filter dust; A dust discharge device (4), the dust discharge device (4) is installed inside the base (1-2), and the dust discharge device (4) is located below the dust collection device (3); The invention is characterized in that a vertical downward wind guide plate (1-3) for guiding airflow and dust is arranged on the side of the guardrail (1-1) facing the demolished building, the air blowing device (2) comprises an air inlet (2-1), a bellows (2-2), an air distribution pipe (2-3) and an air distribution port (2-4), the bellows (2-2) being installed on the side of the main body 1 facing away from the demolished building, the bellows (2-2) being fixedly connected with the air inlet (2-1), one end of the air distribution pipe (2-3) being connected with the bellows (2-2), and the other end extending to the top of the main body (1) and being connected with the air distribution port (2-4) on the side facing the demolished building, the air distribution port (2-4) being installed between two wind guide plates (1-3) connected to the guardrail (1-1), and high-pressure air is ejected from the air distribution port (2-4) to form a downward high-pressure airflow between two adjacent wind shields under the action of the guardrail (1-1) and the wind guide plate (1-3).

2. The dust prevention device for building demolition construction according to claim 1 is characterized in that: The upper part of the guardrail (1-1) is arc-shaped.

3. The dust prevention device for building demolition construction according to claim 2, characterized in that: The air distribution port (2-4) opens in a direction downward along the arc at the upper end of the guardrail (1-1).

4. The dust prevention device for building demolition construction according to claim 2, characterized in that: The upper end of the base (1-2) is open, and the bottom of the air guide plate (1-3) cooperates with the upper end opening of the base (1-2).

5. The dust prevention device for building demolition construction according to claim 1, characterized in that: The dust collecting device (3) comprises a filter (3-1), a second baffle (3-2), a second bellows (3-3), a bag dust collector (3-4), a dust discharge pipe (3-5) and an air outlet (3-6); the filter (3-1) is arranged on the side of the base (1-2); a second bellows (3-3) is arranged at the position of the filter (3-1) on the side of the main body (1) facing away from the demolished building; the second bellows (3-3) is connected to the bag dust collector (3-4) installed on the side of the main body (1) facing away from the demolished building through an air duct.

6. The dust prevention device for building demolition construction according to claim 5, characterized in that: The bag filter (3-4) is provided with an air outlet (3-6) for connecting to a fan, and the bottom of the bag filter (3-4) is provided with an ash discharge pipe (3-5) for discharging dust, the end of the ash discharge pipe (3-5) passes through the side wall of the base (1-2) and extends to the bottom of the first baffle (1-4), and a second baffle (3-2) is also provided above the filter screen (3-1).

7. The dust prevention device for building demolition construction according to claim 1, characterized in that: The ash discharging device (4) comprises a conveyor belt (4-1), a transmission shaft (4-2), a third baffle (4-3) and an ash discharging port (4-4); the transmission shaft (4-2) is mounted on a side wall of a base (1-2); the conveyor belt (4-1) is mounted around the transmission shaft (4-2); the conveyor belt (4-1) and the transmission shaft (4-2) are slidably matched; the conveyor belt (4-1) is located below the first baffle (1-4); and an ash discharging port (4-4) is also provided on the side wall of the base (1-2).

8. The dust prevention device for building demolition construction according to claim 7, characterized in that: The conveyor belt (4-1) is provided with a scraper.

9. The dust prevention device for building demolition construction according to claim 8, characterized in that: The third baffle (4-3) is tilted downward, with one end fixedly connected to the side wall of the base (1-2) and located below the conveyor belt (4-1), and the other end of the third baffle (4-3) is connected to the ash discharge port (4-4).

10. The dust prevention device for building demolition construction according to claim 1, characterized in that: A first baffle (1-4) inclined downward is provided below the air guide plate (1-3) on one side of the main body (1), and the conveyor belt (4-1) is located below the first baffle (1-4).

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