A dust treatment system

Abstract

A dust treatment system includes a main connecting road, branch connecting roads, a transverse passage, a first branch road, a second branch road, a machine room, a first processing unit, a second processing unit, and a third processing unit. The branch connecting roads connect to the interior of a tunnel and converge to the main connecting road. The main connecting road connects to the machine room via the transverse passage and the first branch road. A fan is located in the machine room. The first processing unit is located upstream of the fan, and a three-way valve is installed on the downstream pipeline of the fan. The three-way valve can be rotated to switch the downstream pipeline to either the second processing unit or the third processing unit. The second processing unit includes a spray booth for treating dust, and the third processing unit includes a filter cartridge for treating chemical gases.

Description

Technical Field

[0001] This invention relates to the field of tunnel ventilation, and more specifically to a dust and smoke treatment system. Background Technology

[0002] During the construction and operation of tunnels, there are many situations that require ventilation control inside the tunnel. For example, blasting during construction can generate a large amount of smoke and dust, which can affect further construction and needs to be removed as soon as possible. Another example is when a hazardous gas leak occurs from a transport vehicle inside the tunnel, the hazardous gas cannot be removed as quickly as in a normal open-air environment. Therefore, special methods or equipment are needed for ventilation control in these two situations and similar situations, in order to remove hazardous gases or smoke and dust as soon as possible, or to treat hazardous gases or smoke and dust.

[0003] In practical engineering work, the following problems exist:

[0004] I. Existing technologies for treating smoke and dust involve setting up a processing room above the mountain through which the tunnel passes. The room contains a fan that extracts the smoke and dust from the tunnel through a connecting channel. The connecting channel is directly connected to a valve for control. The valve opens and then proceeds with the subsequent processing. However, this results in the smoke and dust that has not undergone preliminary treatment passing directly through the subsequent equipment. Small amounts of sand, leaves, and impurities in the smoke and dust may affect the subsequent equipment.

[0005] Second, as mentioned above, the fan extracts the smoke and dust from the tunnel through the connecting channel. If a preliminary smoke and dust blocking structure such as a filter is designed at this time, the large smoke and dust particles (such as a small amount of sand and gravel), leaves, impurities, etc. blocked by the filter will still be in the connecting channel. This blocking is meaningless, and the smoke and dust particles cannot be treated. There is no corresponding solution for how to perform the first step of treatment and collection of smoke and dust particles.

[0006] Third, as mentioned above, a filter screen is used to initially block smoke and dust. The filter screen is then attached to the valve, and the filter screen is cleaned by the opening and closing of the gate and the brush on the gate. This technical solution exists in a few existing technologies, but the existing technologies only consider the cleaning of the filter screen by the brush after the gate is opened and closed. They do not consider how to deal with the dirt on the brush bristles themselves, nor do they consider how the close proximity of the filter screen to the gate will cause dirt to accumulate near the gate, or how to deal with the dirt after it enters the gate's receiving cavity.

[0007] Fourth, the above-mentioned scheme treats and collects large dust particles, but there is an unsolvable problem: there is a certain wind speed in the air duct, so how to ensure that the collected dust particles are not blown away by the wind in the duct.

[0008] Fifth, regarding the collection of large particles of smoke and dust as mentioned above, there is no relevant technology on how to remove them after collection, or how to provide a device that is easy to place and remove.

[0009] VI. As described above, the preliminary treatment unit is set up with the help of a branch passage. However, the preliminary treatment unit is tilted, which may lead to unstable valve installation. Summary of the Invention

[0010] To overcome the above problems, the present invention proposes a solution that addresses multiple problems simultaneously.

[0011] The technical solution adopted by this invention to solve its technical problem is as follows: a dust treatment system, comprising a main connecting road, branch connecting roads, a transverse channel, a first branch road, a second branch road, a machine room, a first processing unit, a second processing unit, and a third processing unit; the branch connecting roads connect to the interior of a tunnel, the branch connecting roads converge to the main connecting road, and the main connecting road connects to the machine room via the transverse channel and the first branch road; the fan is located in the machine room, the first processing unit is installed upstream of the fan, and a three-way valve is installed on the downstream pipeline of the fan; the three-way valve can be rotated to switch the downstream pipeline to either the second processing unit or the third processing unit; the second processing unit includes a spray room for treating dust, and the third processing unit includes a filter cartridge for treating chemical gases;

[0012] The first processing unit includes a plug, a collection chamber, a collection cylinder, a first baffle, a second baffle, a valve, and a connecting pipe; the collection cylinder has an opening on its peripheral wall and a hanging ring at its upper end; the valve includes a drive unit, a support plate, a tray, a valve body, a bracket, a receiving chamber, a flow path, a valve plate, a drive shaft, a left valve seat, a right valve seat, a filter screen, a baffle, bristles, a scraper, and a blocking block;

[0013] A plug is provided at the upper end of the main connecting road, and a transverse channel is provided on the side of the main connecting road. The downstream of the transverse channel branches into an upwardly inclined first branch and a downwardly inclined second branch. The valve controls the opening and closing of the first branch and is connected to the connecting pipe to lead the fluid in the first branch out of the first branch. A first baffle and a second baffle are suspended on the upper part of the inner wall of the second branch. The collection chamber is provided downstream of the second branch and has an opening at the top. The collection cylinder is provided in the collection chamber and can be removed from the collection chamber.

[0014] The valve body has an internal flow path, and the bracket has an internal receiving cavity. When the valve is not installed and is in an upright position, a bracket is provided above the valve body, a support plate is provided above the bracket, a drive unit is provided above the support plate, the left end of the support plate is connected to the support plate, the left side of the support plate is inclined, a drive shaft is provided at the lower end of the drive unit, the drive shaft passes through the support plate and connects to the valve plate, a scraper, a stop block and bristles are connected to the left side of the valve plate, and the bristles are located between the scraper and the stop block; a filter screen is provided inside the left valve seat, and a blocking block is provided on the right side of the left valve seat. In the valve open state, the upper end of the stop block abuts against the lower end of the blocking block; in the valve closed state, the lower end of the scraper abuts against the upper end of the left valve seat, there is a gap between the lower end of the scraper and the upper end of the blocking block, and there is a gap between the right end of the blocking block and the valve plate.

[0015] Preferably, the valve body and the bracket are integrally formed.

[0016] Preferably, the drive unit is a hydraulic drive unit.

[0017] Preferably, the tray and the bracket are connected by a connector.

[0018] Preferably, the drive shaft extends into the valve plate to achieve the connection.

[0019] Preferably, the lower wall of the second branch is inclined, and the lower wall of the transverse channel is also inclined.

[0020] Preferably, the second baffle is located downstream of the first baffle.

[0021] Preferably, the length of the second baffle is greater than the length of the first baffle.

[0022] Preferably, when the valve is installed in the first branch, the filter screen is located in the first branch.

[0023] Preferably, when the valve is installed in the first branch line, the inclined surface of the support plate is supported on the floor of the machine room.

[0024] The beneficial effects of this invention are:

[0025] I. Regarding the first point raised in the background technology, a plug is installed at the upper end of the main connecting channel to block the main connecting channel and guide the gas to the first branch road to be discharged to the machine room. The first branch road is set at an upward slope and a control valve is installed on the first branch road. A filter screen is installed upstream of the control valve. The filter screen can block large particles in the smoke and dust. After the large particles are blocked, they fall down but will not fall into the main connecting channel, thereby preventing large particles from falling back into the tunnel and allowing them to be collected later.

[0026] Second, in response to the second point raised in the background technology, a second branch road is set up to intersect with the first branch road. Particles that are blocked from falling in the first branch road fall into the second branch road, and the particles fall into the collection chamber by tilting downwards in the second branch road.

[0027] Thirdly, regarding the third point raised in the background technology, a blocking part is provided at the upper part of the valve seat on the left side of the valve. The blocking part will scrape against the brush bristles during the movement of the valve plate, thereby cleaning the brush bristles to a certain extent. A scraper is provided at the upper end of the valve plate and a stop is provided at the lower part. The scraper blocks dust particles from entering above the scraper and can also scrape some particles that enter the valve plate's receiving cavity downwards. There is a gap between the blocking part and the valve plate to allow particles to fall.

[0028] Fourthly, in response to the fourth point raised in the background technology, a first baffle and a second baffle are installed on the upper wall of the second branch, which can block the wind to a certain extent and prevent the particles in the collection chamber from being blown back to a certain extent.

[0029] Fifthly, in response to the fifth point raised in the background technology, a collection tube is provided in the collection chamber. The collection tube has an opening and a hanging ring for lifting and gripping, and the collection tube can be removed.

[0030] VI. Regarding the sixth point raised in the background art, a support plate is provided at the upper end of the valve bracket, and a support plate is provided on one side of the support plate. One end of the support plate includes an inclined surface, and the support plate can support the valve to provide stability.

[0031] Note: The above designs are not in any particular order, and each one makes the present invention different from the prior art and a significant advancement. Attached Figure Description

[0032] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0033] Figure 1 This is a schematic diagram of the overall structure of the first processing unit of the present invention.

[0034] Figure 2 This is a schematic diagram of the valve of the present invention in its upright and open state without installation.

[0035] Figure 3 This is a schematic diagram of the valve of the present invention in its upright and closed state without installation.

[0036] Figure 4 For the present invention Figure 3 Schematic diagram of the internal structure of the middle circle section

[0037] Figure 5 This is a schematic diagram of the fluid connection path between the tunnel, the mountain, and the machine room in this invention.

[0038] Figure 6 This is a schematic diagram of the main components of the dust treatment system of the present invention.

[0039] The reference numerals in the figure are as follows:

[0040] 1. Machine room installation surface; 2. Main connecting road; 3. End cap; 4. Horizontal passage; 5. Sloping surface; 6. First branch road; 7. Second branch road; 8. Collection chamber; 9. Collection cylinder; 10. Opening; 11. First baffle; 12. Second baffle; 13. Hanging ring; 14. Valve; 15. Connecting pipe; 16. Drive unit; 17. Support plate; 18. Support plate; 19. Valve body; 20. Bracket; 21. Storage chamber; 22. Flow path; 23. Valve plate; 24. Drive shaft; 25. Left valve seat; 26. Right valve seat; 27. Filter screen; 28. Stop block; 29. ​​Brush bristles; 30. Scraper block; 31. Blocking block; 32. Gap; 33. Mountain; 34. Branch connecting road; 35. Machine room; 36. Fan; 37. Spray room; 38. Filter cylinder; 39. Tunnel interior. Detailed Implementation

[0041] As shown in the figure: A dust treatment system includes a main connecting road, branch connecting roads, a transverse passage, a first branch road, a second branch road, a machine room, a first processing unit, a second processing unit, and a third processing unit. The branch connecting roads connect to the interior of a tunnel and converge to the main connecting road. The main connecting road connects to the machine room via the transverse passage and the first branch road. A fan is located in the machine room. The first processing unit is located upstream of the fan, and a three-way valve is installed on the downstream pipeline of the fan. The three-way valve can be rotated to switch the downstream pipeline to either the second or third processing unit. The second processing unit includes a spray booth for treating dust, and the third processing unit includes a filter cartridge for treating chemical gases.

[0042] The first processing unit includes a plug, a collection chamber, a collection cylinder, a first baffle, a second baffle, a valve, and a connecting pipe; the collection cylinder has an opening on its peripheral wall and a hanging ring at its upper end; the valve includes a drive unit, a support plate, a tray, a valve body, a bracket, a receiving chamber, a flow path, a valve plate, a drive shaft, a left valve seat, a right valve seat, a filter screen, a baffle, bristles, a scraper, and a blocking block;

[0043] A plug is provided at the upper end of the main connecting road, and a transverse channel is provided on the side of the main connecting road. The downstream of the transverse channel branches into an upwardly inclined first branch and a downwardly inclined second branch. The valve controls the opening and closing of the first branch and is connected to the connecting pipe to lead the fluid in the first branch out of the first branch. A first baffle and a second baffle are suspended on the upper part of the inner wall of the second branch. The collection chamber is provided downstream of the second branch and has an opening at the top. The collection cylinder is provided in the collection chamber and can be removed from the collection chamber.

[0044] The valve body has an internal flow path, and the bracket has an internal receiving cavity. When the valve is not installed and is in an upright position, a bracket is provided above the valve body, a support plate is provided above the bracket, a drive unit is provided above the support plate, the left end of the support plate is connected to the support plate, the left side of the support plate is inclined, a drive shaft is provided at the lower end of the drive unit, the drive shaft passes through the support plate and connects to the valve plate, a scraper, a stop block and bristles are connected to the left side of the valve plate, and the bristles are located between the scraper and the stop block; a filter screen is provided inside the left valve seat, and a blocking block is provided on the right side of the left valve seat. In the valve open state, the upper end of the stop block abuts against the lower end of the blocking block; in the valve closed state, the lower end of the scraper abuts against the upper end of the left valve seat, there is a gap between the lower end of the scraper and the upper end of the blocking block, and there is a gap between the right end of the blocking block and the valve plate.

[0045] As shown in the figure: The valve body and the bracket are integrally formed. The drive unit is a hydraulic drive unit. The support plate and the bracket are connected by a connector. The drive shaft extends into the valve plate for connection. The lower wall of the second branch is inclined, and the lower wall of the transverse channel is also inclined. The second baffle is located downstream of the first baffle. The length of the second baffle is greater than the length of the first baffle. When the valve is installed in the first branch, the filter screen is located in the first branch. When the valve is installed in the first branch, the inclined surface of the support plate is supported on the machine room floor.

[0046] The above detailed description is a specific description of feasible embodiments of the present invention. These embodiments are not intended to limit the patent scope of the present invention. All equivalent implementations or modifications that do not depart from the present invention should be included in the patent scope of this case.

Claims

1. A dust and smoke treatment system, characterized in that: The system includes a main connecting road, branch connecting roads, a transverse passage, a first branch road, a second branch road, a machine room, a first processing unit, a second processing unit, and a third processing unit. The branch connecting roads connect to the tunnel interior and converge to the main connecting road. The main connecting road connects to the machine room via the transverse passage and the first branch road. A fan is located in the machine room. The first processing unit is located upstream of the fan, and a three-way valve is installed on the downstream pipeline of the fan. By rotating the three-way valve, the downstream pipeline can be connected to either the second or third processing unit. The second processing unit includes a spray booth for treating smoke and dust, and the third processing unit includes a filter cartridge. The first processing unit includes a plug, a collection chamber, a collection cylinder, a first baffle, a second baffle, a valve, and a connecting pipe; the collection cylinder has an opening on its peripheral wall and a hanging ring at its upper end; the valve includes a drive unit, a support plate, a tray, a valve body, a bracket, a receiving chamber, a flow path, a valve plate, a drive shaft, a left valve seat, a right valve seat, a filter screen, a baffle, bristles, a scraper, and a blocking block; A plug is provided at the upper end of the main connecting road, and a transverse channel is provided on the side of the main connecting road. The downstream of the transverse channel branches into an upwardly inclined first branch and a downwardly inclined second branch. The valve controls the opening and closing of the first branch and is connected to the connecting pipe to lead the fluid in the first branch out of the first branch. A first baffle and a second baffle are suspended on the upper part of the inner wall of the second branch. The collection chamber is provided downstream of the second branch and has an opening at the top. The collection cylinder is provided in the collection chamber and can be removed from the collection chamber. The valve body has an internal flow path, and the bracket has an internal receiving cavity. When the valve is not installed and is in an upright position, a bracket is provided above the valve body, a support plate is provided above the bracket, a drive unit is provided above the support plate, the left end of the support plate is connected to the support plate, the left side of the support plate is inclined, a drive shaft is provided at the lower end of the drive unit, the drive shaft passes through the support plate and connects to the valve plate, a scraper, a stop block and bristles are connected to the left side of the valve plate, and the bristles are located between the scraper and the stop block; a filter screen is provided inside the left valve seat, and a blocking block is provided on the right side of the left valve seat. In the valve open state, the upper end of the stop block abuts against the lower end of the blocking block; in the valve closed state, the lower end of the scraper abuts against the upper end of the left valve seat, there is a gap between the lower end of the scraper and the upper end of the blocking block, and there is a gap between the right end of the blocking block and the valve plate; The second baffle is located downstream of the first baffle; when the valve is installed in the first branch, the filter screen is located in the first branch; the length of the second baffle is greater than the length of the first baffle; when the valve is installed in the first branch, the inclined surface of the support plate is supported on the machine room floor.

2. The dust treatment system according to claim 1, characterized in that: The valve body and the bracket are integrally formed.

3. The dust treatment system according to claim 1, characterized in that: The drive unit is a hydraulic drive unit.

4. The dust treatment system according to claim 1, characterized in that: The tray and the bracket are connected by a connector.

5. The dust treatment system according to claim 1, characterized in that: The drive shaft extends into the valve plate to achieve connection.

6. The dust treatment system according to claim 1, characterized in that: The lower wall of the second branch road is inclined, and the lower wall of the transverse channel is also inclined.

Images