CN209942864U - Long distance air pipe local fan wind tube connecting device - Google Patents

Abstract

The utility model discloses a long distance air pipe local fan dryer connecting device, the connecting device comprises a cleaning and filtering device, a rough filtering device and a one-way valve fixing device, the rough filtering device is fixedly connected on the left side of the cleaning and filtering device, the one-way valve fixing device is connected on the right side of the cleaning and filtering device, the air inlet pipe is fixedly connected on the left side of the rough filtering device, the air outlet pipe is fixedly connected on the right side of the one-way valve fixing device, the air inlet pipe is connected with the local fan, the air outlet pipe is connected with the dryer, the rough filtering device comprises a filter screen frame, and a rough filter screen is vertically arranged in the filter screen frame; the one-way valve fixing device is fixedly provided with a plurality of one-way check air valves on the partition plate. The local fan is closely connected with the air duct through the connecting device, when the suction force of the local fan is greater than the pressure of the air duct, the one-way check air valve is opened to supplement fresh air flow, and the local fan is prevented from being flatly sucked by the air duct or being deformed or burning out the local fan due to overlarge suction force.

Description

Long distance air pipe local fan wind tube connecting device

Technical Field

The utility model belongs to the technical field of the mining ventilation connecting device, specific saying so relates to a long distance air pipe local fan dryer connecting device.

Background

In the underground tunneling operation process of a mine, a large amount of slag and dust can be knocked up near a tunneling working face, so that ventilation is slow, and the concentration of carbon monoxide is often high. According to the needs of carrying out blasting and mining under a mine, the air duct is timely moved to the deep part of the mine hole according to the depth of the mine hole, and residual smoke at the blasting part is timely processed to prevent potential safety hazards caused by overhigh smoke concentration. The local fan ventilation process refers to local ventilation performed by a mining axial-flow type local ventilator, the mining axial-flow type local ventilator is called a local fan for short, and the local fan ventilation method is a tunneling ventilation method widely adopted in underground mine exploitation in China. The local fan ventilation method utilizes a local fan to send fresh air into a driving working face through an air inlet pipe or discharge dirty air into return air flow through an air duct, wherein the fresh air is called as press-in type local ventilation, and the dirty air is called as draw-out type local ventilation.

Generally, mine holes under a mine are deep, the distance for tunneling a tunnel is long, so that a ventilating duct in the tunnel is long, the pressure of fresh air in the long-distance ventilating duct needs to be kept in a balanced state, and the local fan ventilating system can normally work; when the suction force of the local fan is smaller than the pressure of the air duct, the phenomenon of dirty air overflow is easy to occur, thereby polluting the air quality in the roadway. Therefore, based on the defects in the prior art, it is necessary to provide a long-distance ventilation duct local fan air cylinder connecting device which can balance the pressure in the duct and prevent the leakage of dirty air.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an overcome the not enough of prior art existence, provide a long distance air pipe local fan dryer connecting device.

The utility model discloses a realize through following technical scheme: a long-distance air pipeline local fan air cylinder connecting device comprises a cleaning and filtering device, a rough filtering device and a one-way valve fixing device, wherein the left side of the cleaning and filtering device is fixedly connected with the rough filtering device through a flange, the right side of the cleaning and filtering device is connected with the one-way valve fixing device through a flange, the left side of the rough filtering device is fixedly connected with an air inlet pipe, the right side of the one-way valve fixing device is fixedly connected with an air outlet pipe, the air inlet pipe is connected with a local fan, the air outlet pipe is connected with an air cylinder, the rough filtering device comprises a filter screen frame, and a rough filter screen is vertically arranged in the filter screen frame; the one-way valve fixing device comprises a supporting frame, a partition plate is fixedly arranged in the supporting frame, and a plurality of one-way check air valves are fixedly arranged on the partition plate; wash filter equipment and include the square casing that link up about, the water flow uniform distributor of integration in the square casing and the header tank that is located the square casing below, it is provided with a water tank to be located the square casing on the top of water flow uniform distributor, it is provided with a lower water tank to be located the square casing in the bottom of water flow uniform distributor, the water inlet department on water tank top is provided with the inlet tube, still be provided with the overflow mouth at the top of water tank, the delivery port department of water tank bottom is provided with the drain pipe under, be provided with the water pump in the lower part of header tank, the water pump passes through inlet channel and inlet tube intercommunication.

The water collecting tank is divided into an upper water collecting tank and a lower water collecting tank which are respectively an upper water collecting tank and a lower water collecting tank, the upper water collecting tank and the lower water collecting tank are connected through a flange, a filter screen is transversely arranged in the lower water collecting tank, and a liquid supplementing pipe is arranged on the side surface of the lower water collecting tank.

The water flow uniform distributor is composed of a plurality of vertically arranged corrugated boards. The side surface of the lower water collecting tank is also provided with a liquid level meter. Two one-way check air valves are fixedly arranged on the partition board.

The utility model has the advantages that: the local fan passes through the utility model provides a connecting device and dryer zonulae occludens are provided with a plurality of one-way contrary blast gates and wash filter equipment in connecting device. When the suction force of the local fan at the rear section is greater than the pressure of the air duct at the front section, the one-way check air valve is opened properly to supplement fresh air flow, so that the phenomenon that the suction force of the local fan is too large, and the air duct is flattened and deformed or the local fan is burnt out is prevented; when the suction force of the local fan at the rear section is smaller than the pressure of the front section air duct, the one-way check air valve is closed, so that the dirty air is prevented from overflowing, and the air quality of the tunnel polluted by the dirty air can be effectively avoided. The air inlet of the one-way check air valve does not go out the air the utility model discloses the air inlet when forming the negative pressure in the connecting device, when being the malleation in the device, one-way check air valve self-closing.

The utility model discloses a connecting device adds the washing filter equipment who plays further filtering action again on having had colating device's basis, is equipped with water or washing liquid in the washing filter equipment, makes the fresh air through connecting device can obtain further washing in connecting device and filters, makes the air that gets into in the tunnelling tunnel not receive the influence of outside air quality to the air quality in the entering tunnel has been improved. Cleaning filter equipment is at the during operation, and the header tank is added by the fluid infusion pipe to the washing liquid, and the washing liquid in the header tank passes through in the water pump, inlet channel and the inlet tube gets into the upper water tank on square casing top, and later the washing liquid in the upper water tank passes through rivers uniform distributor and flows downwards to form the cascade on rivers uniform distributor, in the lower water tank of square casing bottom was flowed to later the cascade, the washing liquid in the lower water tank got into the header tank through the drain pipe again, so reciprocating cycle.

Drawings

Fig. 1 is a schematic structural view of the local fan air duct connecting device of the long-distance air duct of the present invention;

in the figure: 1-cleaning the filtering device; 2-coarse filtration means; 3-a one-way valve fixing device; 4-a flange; 5-an air inlet pipe; 6-air outlet pipe; 7-filter screen frame; 8-coarse strainer; 9-a support frame; 10-a separator; 11-one-way check air valve; 12-a water flow uniform distributor; 13-a water collection tank; 14-a water feeding tank; 15-discharging the water tank; 16-a water inlet; 17-a water inlet pipe; 18-an overflow port; 19-a drain pipe; 20-a water pump; 21-a liquid level meter; 22-a filter screen; 23-liquid supplement pipe.

Detailed Description

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

As shown in fig. 1, a long-distance ventilation duct local fan air duct connecting device comprises a cleaning and filtering device 1, a rough filtering device 2 and a one-way valve fixing device 3, wherein the rough filtering device 2 is fixedly connected to the left side of the cleaning and filtering device 1 through a flange 4, the one-way valve fixing device 3 is connected to the right side of the cleaning and filtering device 1 through a flange 4, an air inlet pipe 5 is fixedly connected to the left side of the rough filtering device 2, an air outlet pipe 6 is fixedly connected to the right side of the one-way valve fixing device 3, the air inlet pipe 5 is connected with a local fan, the air outlet pipe 6 is connected with an air duct, the rough filtering device 2 comprises a filter screen frame 7, and a rough filter screen 8 is vertically arranged in the filter screen frame 7; the one-way valve fixing device 3 comprises a supporting frame 9, a partition plate 10 is fixedly arranged in the supporting frame 9, and a plurality of one-way check air valves 11 are fixedly arranged on the partition plate 10; wash filter equipment 1 including the square casing that link up about, rivers uniform distributor 12 of integrated in square casing and the header tank 13 that is located the square casing below, it is provided with an upper water tank 14 to be located the square casing on the top of rivers uniform distributor 12, it is provided with a lower water tank 15 to be located the square casing in the bottom of rivers uniform distributor 12, 16 departments of water inlet on upper water tank 14 top are provided with inlet tube 17, still be provided with overflow mouth 18 at the top of upper water tank 14, the delivery port department at lower water tank 15 bottom is provided with drain pipe 19, be provided with water pump 20 in the lower part of header tank 13, water pump 20 is through inlet tube 17 way and inlet tube 17 intercommunication.

The water collecting tank 13 is divided into an upper water collecting tank and a lower water collecting tank, the upper water collecting tank and the lower water collecting tank are connected through a flange 4, a filter screen 22 is transversely arranged in the lower water collecting tank, and a liquid supplementing pipe 23 is arranged on the side surface of the lower water collecting tank. The water flow uniform distributor 12 is composed of a plurality of vertically arranged corrugated boards. A liquid level gauge 21 is also provided at the side of the lower header tank. Two one-way check air valves 11 are fixedly arranged on the partition plate 10.

It should be finally noted that the above only serves to illustrate the technical solution of the present invention, and not to limit the scope of the present invention, and that simple modifications or equivalent replacements performed by those skilled in the art to the technical solution of the present invention do not depart from the spirit and scope of the technical solution of the present invention.

Claims (5)

1. The utility model provides a long distance air pipe local fan dryer connecting device which characterized in that: the long-distance ventilation pipeline local fan air cylinder connecting device comprises a cleaning and filtering device, a rough filtering device and a one-way valve fixing device, wherein the rough filtering device is fixedly connected to the left side of the cleaning and filtering device through a flange, the one-way valve fixing device is connected to the right side of the cleaning and filtering device through a flange, an air inlet pipe is fixedly connected to the left side of the rough filtering device, an air outlet pipe is fixedly connected to the right side of the one-way valve fixing device, the air inlet pipe is connected with a local fan, the air outlet pipe is connected with an air cylinder, the rough filtering device comprises a filter screen frame, and a rough filter screen is vertically arranged in the filter screen frame; the one-way valve fixing device comprises a supporting frame, a partition plate is fixedly arranged in the supporting frame, and a plurality of one-way check air valves are fixedly arranged on the partition plate; wash filter equipment including the square casing that link up about, the rivers uniform distributor of integration in the square casing and be located the header tank of square casing below the top of rivers uniform distributor is located the square casing and is provided with a water tank the bottom of rivers uniform distributor is located the square casing and is provided with a lower water tank the water inlet department on water tank top is provided with the inlet tube the top of water tank still is provided with the overflow mouth the water outlet department of lower water tank bottom is provided with the drain pipe the lower part of header tank is provided with the water pump, the water pump pass through the inlet channel with the inlet tube intercommunication.

2. The long-distance ventilating duct local fan air duct connecting device according to claim 1, characterized in that: the water collecting tank is divided into an upper part water collecting tank and a lower part water collecting tank which are respectively an upper part water collecting tank and a lower part water collecting tank, the upper part water collecting tank and the lower part water collecting tank are connected through a flange, a filter screen is transversely arranged in the lower part water collecting tank, and a liquid supplementing pipe is arranged on the side surface of the lower part water collecting tank.

3. The long-distance ventilating duct local fan air duct connecting device according to claim 1 or 2, characterized in that: the water flow uniform distributor is composed of a plurality of vertically arranged corrugated boards.

4. The long-distance ventilating duct local fan air duct connecting device according to claim 2, characterized in that: and a liquid level meter is also arranged on the side surface of the lower water collecting tank.

5. The long-distance ventilating duct local fan air duct connecting device according to claim 1 or 2, characterized in that: two one-way check air valves are fixedly arranged on the partition board.

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