Automatic closing device for failure of dustproof cloth bag

Abstract

The utility model relates to the technical field of dustproof cloth bag failure detection, and provides a dustproof cloth bag failure automatic closing device which comprises a mounting pipe provided with an air inlet and an air outlet, the air inlet is used for being communicated with a dustproof cloth bag, and the air outlet is communicated with the outside; the cover plate is arranged on the inner wall, close to the air outlet, of the mounting pipe in a swinging manner, and after the cover plate swings, the air outlet is blocked or canceled; the first detection piece is arranged on the inner wall, close to the air inlet, of the mounting pipe and used for detecting dust in gas flowing out of the dustproof cloth bag; the controller is arranged on the inner wall of the mounting pipe and is in communication connection with the first detection piece; the linear driving piece is provided with a telescopic end, the linear driving piece is arranged on the inner wall of the mounting pipe and is in communication connection with the controller, and the telescopic end is provided with a clamping groove; the check pin is arranged on the side, close to the linear driving piece, of the cover plate and used for being matched with the clamping groove in a clamped mode. By means of the technical scheme, the problem that in the prior art, a cloth bag type dust collector cannot be automatically closed when losing efficacy is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of dust bag failure detection technology, and specifically to an automatic closing device for a dust bag failure. Background Art

[0002] With the development of society, people pay more and more attention to environmental protection. Therefore, metallurgical and mining enterprises gradually began to use dust collectors to reduce dust, among which bag-type dust collectors are the most widely used. However, when bag-type dust collectors operate in harsh environments such as high temperature, high humidity, high acid and alkali corrosion, after multiple high-pressure blowing operations, some bags will break and fail, causing a large amount of high-concentration dust to enter the atmosphere, seriously affecting the air quality and damaging the health of workers and nearby residents.

[0003] Patent document No. CN105148643A discloses an online detection method for bag blockage of a bag collector, including: two thermistors are provided at the air outlet above each bag, one of which is arranged directly above the bag outlet, and the other is arranged above the side of the bag outlet. A corresponding detection circuit is also provided to detect the resistance values ​​of the two resistors and display the difference between the two resistance values ​​using a display device, and the displayed status is used to determine whether the bag is blocked.

[0004] Patent document No. CN105148643A discloses an online detection method for bag blockage of a bag-type dust collector. The method determines whether the bag is blocked by detecting the resistance difference between two thermistors. However, when the bag is blocked, the operator is required to manually shut down the bag-type dust collector. During this period, the bag-type dust collector will discharge a large amount of dust to the outside. Utility Model Content

[0005] The utility model provides an automatic closing device when a dust bag fails, which solves the problem in the related art that a bag-type dust collector cannot be automatically closed when it fails.

[0006] The technical solution of the utility model is as follows:

[0007] Automatic closing device for dust bag failure, including:

[0008] A mounting pipe having an air inlet and an air outlet, wherein the air inlet is used to communicate with the dust bag, and the air outlet is connected to the outside;

[0009] The cover plate is swingably arranged on the inner wall of the mounting tube close to the air outlet. After the cover plate swings, the air outlet is blocked or unblocked.

[0010] Optionally, it also includes:

[0011] A first detection member is arranged on the inner wall of the mounting tube close to the air inlet and is used to detect dust in the gas flowing out of the dust bag;

[0012] A controller, arranged on the inner wall of the installation tube and communicatively connected with the first detection member;

[0013] A linear drive member having a telescopic end, the linear drive member being arranged on the inner wall of the mounting tube and being communicatively connected with the controller, the telescopic end having a card slot;

[0014] A check pin is arranged on a side of the cover plate close to the linear drive member, and the check pin is used to engage with the slot.

[0015] Optionally, the cover plate has a boss, and after the cover plate swings, the boss abuts against the inner wall of the mounting tube and seals the air outlet.

[0016] Optionally, it also includes:

[0017] The second detection component is arranged on the inner wall of the installation tube close to the air inlet. The second detection component is communicatively connected with the first detection component and the controller. The first detection component and the second detection component are symmetrically arranged. The first detection component is an infrared initiator, and the second detection component is an infrared receiver.

[0018] Optionally, there are a plurality of first detection members, and the plurality of first detection members are arrayed on the inner wall of the mounting tube close to the air inlet; there are a plurality of second detection members, and the plurality of second detection members are arrayed on the inner wall of the mounting tube close to the air inlet.

[0019] Optionally, it also includes:

[0020] An elastic member, arranged on the inner wall of the mounting tube;

[0021] A fixing pin is arranged on the cover plate. After the cover plate swings, the fixing pin abuts against the elastic member and compresses the elastic member.

[0022] Optionally, it also includes:

[0023] A locking tongue, arranged on the cover plate and located on one side of the fixing pin;

[0024] The lock buckle is arranged on the inner wall of the mounting tube close to the air outlet, and after the cover plate swings, the lock tongue is engaged with the lock buckle.

[0025] Optionally, it also includes:

[0026] A generator is arranged on the inner wall of the mounting tube, and the first detection member, the controller, the linear driving member, and the second detection member are electrically connected to the generator respectively;

[0027] A rotating wheel is rotatably arranged on the generator, and the rotating wheel is used to drive the generator to work.

[0028] Optionally, it also includes:

[0029] An exhaust pipe, wherein the cross section of the exhaust pipe is trapezoidal, and the end of the exhaust pipe with a smaller diameter is connected to the air outlet.

[0030] The working principle and beneficial effects of the utility model are:

[0031] In the utility model, when the bag-type dust collector fails, the filtering effect of the bag on the dust in the air is reduced, and the air released from the bag contains a large amount of dust. At this time, the first detection member is affected by the dust in the air, resulting in signal failure. The controller cannot receive the signal from the first detection member, so that the linear drive member works, and the linear drive member moves away from the cover plate. The cover plate loses the limit and deflects a certain angle, and then the wind force lifts the cover plate, so that the cover plate blocks the air outlet. At this time, the wind in the bag cannot be discharged to the outside. The operator can stop the bag-type dust collector and then perform maintenance. The device can automatically close the air outlet when the bag-type dust collector fails, reducing the discharge of dust-containing gas to the outside after the bag-type dust collector fails, thereby protecting the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The preferred implementation modes will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present utility model.

[0033] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0034] Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure in the middle AA direction;

[0035] Figure 3 for Figure 1 Schematic diagram of the cross-sectional structure in the middle BB direction;

[0036] Figure 4 for Figure 2 Schematic diagram of the structure in CC section;

[0037] In the figure, 1. mounting tube; 101. air inlet; 102. air outlet; 2. cover plate; 201. boss; 3. first detection member; 4. controller; 5. linear drive member; 501. telescopic end; 502. slot; 6. check pin; 7. second detection member; 8. elastic member; 9. fixing pin; 10. locking tongue; 11. lock buckle; 12. generator; 13. rotor; 14. exhaust pipe. DETAILED DESCRIPTION

[0038] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the specific implementation methods of the utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0039] In order to simplify the drawings, only the parts related to the utility model are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0040] In this article, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0041] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0042] like Figure 1~Figure 4 As shown, this embodiment proposes an automatic closing device for dust bag failure, including: a mounting tube 1 having an air inlet 101 and an air outlet 102, the air inlet 101 is used to connect to the dust bag, and the air outlet 102 is connected to the outside; a cover plate 2 is swingably arranged on the inner wall of the mounting tube 1 near the air outlet 102, and after the cover plate 2 swings, the air outlet 102 is blocked or unblocked.

[0043] Optionally, it also includes: a first detection member 3 is arranged on the inner wall of the mounting tube 1 close to the air inlet 101, and is used to detect dust in the gas flowing out of the dust bag; a controller 4 is arranged on the inner wall of the mounting tube 1, and is communicatively connected with the first detection member 3; the linear drive member 5 has a telescopic end 501, the linear drive member 5 is arranged on the inner wall of the mounting tube 1, and is communicatively connected with the controller 4, and the telescopic end 501 has a card slot 502; the check pin 6 is arranged on the side of the cover plate 2 close to the linear drive member 5, and the check pin 6 is used to engage with the card slot 502.

[0044] Optionally, the cover plate 2 has a boss 201 , and after the cover plate 2 swings, the boss 201 abuts against the inner wall of the mounting tube 1 and seals the air outlet 102 .

[0045] Optionally, it also includes: a second detection component 7 is arranged on the inner wall of the installation tube 1 near the air inlet 101, the second detection component 7 is communicatively connected with the first detection component 3 and the controller 4, the first detection component 3 and the second detection component 7 are symmetrically arranged, the first detection component 3 is an infrared initiator, and the second detection component 7 is an infrared receiver.

[0046] In this embodiment, the mounting tube 1 is a hollow cylindrical structure; when the dust bag fails, the filtering effect on dust in the air is reduced, resulting in a large amount of dust in the air blown out of the dust bag. When the dusty air passes through the air inlet 101, the dust blocks the signal sent by the first detection member 3, so that the second detection member 7 cannot receive the signal sent by the first detection member 3. At this time, the controller 4 is triggered to shrink the linear drive member 5, the card slot 502 and the check pin 6 are unfastened, and the cover plate 2 deviates to the left by a certain angle. Since the pressure of the air flowing out of the dust bag is relatively high, The wind blows the cover plate 2 upward, and the cover plate 2 is close to the air outlet 102. The boss 201 seals the air outlet 102. At this time, the air discharged by the bag-type dust collector cannot be discharged to the outside. The operator can close the bag-type dust collector by manpower or using an adapted tool, and then inspect the bag-type dust collector. After the inspection is completed, the operator can use an adapted tool to pass through the air outlet 102, push the cover plate 2 back to the initial position, and then operate the linear drive 5 to make the card slot 502 and the check pin 6 engage and cooperate. At this time, the dust bag can discharge air to the outside through the installation tube 1. When the bag-type dust collector fails, the air outlet 102 can be automatically closed, which reduces the discharge of dust-containing gas to the outside after the bag-type dust collector fails, thereby protecting the environment. At the same time, the device is easy to produce and has a low cost.

[0047] Optionally, there are several first detection members 3 , which are distributed in an array on the inner wall of the mounting tube 1 near the air inlet 101 ; there are several second detection members 7 , which are distributed in an array on the inner wall of the mounting tube 1 near the air inlet 101 .

[0048] In this embodiment, there are several first detection members 3 and several second detection members 7, and one first detection member 3 and one second detection member 7 are symmetrically arranged. When the dust bag fails, the gas flowing out of the dust bag contains a lot of dust, and when several second detection members 7 cannot receive the signals sent by several first detection members 3, the controller 4 works. The arrangement of several first detection members 3 and several second detection members 7 reduces the probability of false touches, making the detection performance of the device more accurate.

[0049] Optionally, it further includes: an elastic member 8 is arranged on the inner wall of the mounting tube 1 ; a fixing pin 9 is arranged on the cover plate 2 , and after the cover plate 2 swings, the fixing pin 9 abuts against the elastic member 8 and compresses the elastic member 8 .

[0050] In this embodiment, the elastic member 8 can be a compression spring; when the linear drive member 5 contracts, the engagement between the slot 502 and the check pin 6 is cancelled, the cover plate 2 loses its limit, the elastic member 8 loses pressure reset, and the cover plate 2 deflects to the left by a certain angle; when the cover plate 2 is reset, the slot 502 and the check pin 6 are engaged, and the elastic member 8 is compressed by pressure. The elastic member 8 is used to provide a force for the deflection of the cover plate 2. At the same time, when the cover plate 2 is reset, the elastic member 8 plays a buffering role to reduce the possibility of a hard collision between the cover plate 2 and the inner wall of the mounting tube 1.

[0051] Optionally, it also includes: a lock tongue 10 is arranged on the cover plate 2, located on one side of the fixing pin 9; a lock buckle 11 is arranged on the inner wall of the mounting tube 1 close to the air outlet 102, and after the cover plate 2 swings, the lock tongue 10 and the lock buckle 11 are snap-fitted.

[0052] In this embodiment, after the cover plate 2 is deflected by a certain angle, the cover plate 2 continues to deflect due to wind force, and when the lock tongue 10 and the lock buckle 11 are engaged, the cover plate 2 blocks the air outlet 102. The arrangement of the lock tongue 10 and the lock buckle 11 enables the cover plate 2 to block the air outlet 102. When the operator closes the bag dust collector, the cover plate 2 will not flip away from the air outlet 102, thereby reducing the possibility of dust flowing to the outside.

[0053] Optionally, it also includes: a generator 12 is arranged on the inner wall of the mounting tube 1, and the first detection component 3, the controller 4, the linear drive component 5, and the second detection component 7 are electrically connected to the generator 12 respectively; a wheel 13 is rotatably arranged on the generator 12, and the wheel 13 is used to drive the generator 12 to work.

[0054] In this embodiment, the wind power (wind speed can reach 8 m / s) at the air inlet 101 is used to generate electricity, and the generated electric energy is used to power the first detection member 3, the controller 4, the linear drive member 5, and the second detection member 7. Under the action of the wind, the rotor 13 rotates rapidly, the rotor 13 is coaxial with the generator 12, and the rotor of the generator 12 also rotates at a high speed. The output electric energy of the generator 12 is converted into stable direct current after rectification and filtering.

[0055] Optionally, it further includes: an exhaust pipe 14 having a trapezoidal cross section, and an end of the exhaust pipe 14 with a smaller diameter is connected to the air outlet 102 .

[0056] In this embodiment, the cross-section of the exhaust pipe 14 is trapezoidal, the end with a smaller diameter is connected to the air outlet 102, and the end with a larger diameter is connected to the outside. The air flowing out of the bag-type dust collector passes through the installation pipe 1 and is discharged from the end with a larger diameter of the exhaust pipe 14. The setting of the exhaust pipe 14 enhances the pressure of the airflow when it is discharged.

[0057] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. The dust bag failure automatic closing device is characterized by: include: The installation tube (1) has an air inlet (101) and an air outlet (102), wherein the air inlet (101) is used to communicate with the dust bag, and the air outlet (102) is connected to the outside; The cover plate (2) is swingably arranged on the inner wall of the installation tube (1) close to the air outlet (102); after the cover plate (2) swings, it blocks or cancels the blocking of the air outlet (102).

2. The dust bag failure automatic closing device according to claim 1 is characterized in that: Also includes: A first detection member (3) is arranged on the inner wall of the installation tube (1) close to the air inlet (101) and is used to detect dust in the gas flowing out of the dust bag; A controller (4), arranged on the inner wall of the mounting tube (1) and communicatively connected with the first detection element (3); A linear drive member (5) having a telescopic end (501), the linear drive member (5) being arranged on the inner wall of the mounting tube (1) and being communicatively connected with the controller (4), the telescopic end (501) having a slot (502); A check pin (6) is arranged on a side of the cover plate (2) close to the linear drive member (5), and the check pin (6) is used to engage with the card slot (502).

3. The dust bag failure automatic closing device according to claim 2 is characterized in that: The cover plate (2) has a boss (201), and after the cover plate (2) swings, the boss (201) abuts against the inner wall of the mounting tube (1) and seals the air outlet (102).

4. The dust bag failure automatic closing device according to claim 2 is characterized in that: Also includes: The second detection component (7) is arranged on the inner wall of the installation tube (1) near the air inlet (101), the second detection component (7) is communicatively connected with the first detection component (3) and the controller (4), the first detection component (3) and the second detection component (7) are symmetrically arranged, the first detection component (3) is an infrared initiator, and the second detection component (7) is an infrared receiver.

5. The dust bag failure automatic closing device according to claim 4 is characterized in that: There are a plurality of the first detection members (3), and the plurality of the first detection members (3) are distributed in an array on the inner wall of the installation tube (1) close to the air inlet (101); there are a plurality of the second detection members (7), and the plurality of the second detection members (7) are distributed in an array on the inner wall of the installation tube (1) close to the air inlet (101).

6. The dust bag failure automatic closing device according to claim 3 is characterized in that: Also includes: An elastic member (8) is arranged on the inner wall of the mounting tube (1); A fixing pin (9) is arranged on the cover plate (2); after the cover plate (2) swings, the fixing pin (9) abuts against the elastic member (8) and compresses the elastic member (8).

7. The dust bag failure automatic closing device according to claim 6 is characterized in that: Also includes: A locking tongue (10) is arranged on the cover plate (2) and is located on one side of the fixing pin (9); A lock buckle (11) is arranged on the inner wall of the installation tube (1) close to the air outlet (102); after the cover plate (2) swings, the lock tongue (10) is snap-fitted with the lock buckle (11).

8. The dust bag failure automatic closing device according to claim 5, characterized in that: Also includes: A generator (12) is arranged on the inner wall of the mounting tube (1); the first detection member (3), the controller (4), the linear drive member (5), and the second detection member (7) are electrically connected to the generator (12) respectively; A rotating wheel (13) is rotatably arranged on the generator (12), and the rotating wheel (13) is used to drive the generator (12) to work.

9. The dust bag failure automatic closing device according to claim 1, characterized in that: Also includes: An exhaust pipe (14), wherein the cross section of the exhaust pipe (14) is trapezoidal, and the end of the exhaust pipe (14) with a smaller diameter is connected to the air outlet (102).

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