Efficient dust removal structure

Abstract

The invention discloses an efficient dust removal structure. The invention discloses an efficient dust removal structure which comprises an air inducing pipe, an air inlet pipe and an air outlet pipe, a plurality of dust collection ports are formed in the gas collection hood body; the connecting pipes comprise the first connecting pipe, the second connecting pipe to the nth connecting pipe, n is a natural number larger than or equal to 2, the first connecting pipe is communicated between the two adjacent dust suction ports, the second connecting pipe is communicated between the two adjacent first connecting pipes, and the like, the nth connecting pipe is communicated between the two adjacent (n-1) th connecting pipes, and the air inducing pipe is communicated with the nth connecting pipe. The device has the advantage that the dust filtering and removing effects are improved.

Description

Technical Field

[0001] The present application relates to the field of dust treatment, and in particular to a high-efficiency dust removal structure. Background Art

[0002] Workshop safety has always been the top priority in the production process. In addition to paying attention to the possible injuries that production equipment and raw materials may cause to workshop personnel, it is also necessary to pay attention to the impact of the workshop environment on the physical and mental health of personnel. Dust is one of the common workshop environmental hazards, so workshop dust removal is a key link.

[0003] The dust removal device in a general workshop includes an air hood, a dust collector and an exhaust fan. The air hood is installed near the operating equipment that requires dust removal. Under the negative pressure of the exhaust fan, the dust enters the dust collector through the air hood. The dust collector is commonly a bag-type dust collector to achieve dust filtration and dust removal.

[0004] After the actual application of this dust removal method in the fiber products industry, it was found that each time the dust removal operation was started, the dust suction effect was better in the initial test state, but after a period of time, the dust suction force deteriorated, and the dust removal operation had to be restarted, affecting the dust filtration and dust removal effects. Summary of the invention

[0005] In order to improve the dust filtering and dust removal effects, the present application provides a high-efficiency dust removal structure.

[0006] The present application provides an efficient dust removal structure adopting the following technical solution: A high-efficiency dust removal structure, comprising: An air induced duct, the air induced duct being used to communicate with the dust collector; An air collecting hood body, wherein the air collecting hood body is provided with a plurality of dust suction ports; The connecting pipe includes a first connecting pipe, a second connecting pipe to an nth connecting pipe, where n is a natural number ≥ 2, the first connecting pipe is connected between two adjacent suction ports, the second connecting pipe is connected between two adjacent first connecting pipes, and so on, the nth connecting pipe is connected between two adjacent n-1th connecting pipes, and the air duct is connected to the nth connecting pipe.

[0007] The inventors have discovered that the reason why the existing dust removal methods cause the bag filter dust collector to have poor dust filtering effect, especially in the field of fiber product production, is largely because in order to fully absorb the dust, a larger dust suction wind speed is adjusted to drive a larger dust flow rate, but at the same time it will inevitably take away some lighter fibers, causing the fibers to be sucked into the dust collector and attached to the surface of the filter bag. After the dust removal continues for a period of time, a certain number of fibers gather and cover the surface of the filter bag, hindering the gas from passing through the pores of the filter bag. The airflow is forced to weaken, resulting in a weakening of the dust suction force.

[0008] By adopting the above technical solution, the air collecting hood body is provided with multiple dust suction ports, and the local negative pressure is dispersed through the multiple dust suction ports. The negative pressure of each dust suction port is reduced, and the dust flow rate of the dust suction port is slowed down. Since the fiber mass is heavier than the dust, the dust is more easily sucked away by the dust suction port, and more fibers are retained, thereby reducing the situation where the fibers enter the dust removal structure, and further reducing the situation where the fibers adhere to the filter bag and affect the airflow, thereby improving the dust removal effect and reducing the loss of fibers.

[0009] With the first connecting pipe, the second connecting pipe to the nth connecting pipe connected, the dust passes through the first connecting pipe, the second connecting pipe to the nth connecting pipe in sequence, so that the pressure of each dust suction port is gradually and evenly reduced, and at the same time, the dust entering the connecting pipe can fully flow in the extended path, further promoting the dust that is easier to inhale to enter the dust collector first, and the dust that is more difficult to inhale to enter the dust collector later. The dust contacts the filter bag in turn, and also reduces the rate of too much dust adhering to the filter bag in a short period of time and blocking the filter bag, thereby improving the dust filtering and dust removal effect.

[0010] Optionally, each of the dust suction ports is connected to one end of one of the first connecting pipes.

[0011] By adopting the above technical solution, each dust suction port is connected to only one first connecting pipe, so that the dust flow direction is orderly and the dust suction efficiency is improved.

[0012] Optionally, the number of the suction ports is 4 k , k is a natural number ≥ 1, and the number of the first connecting pipes is 4 k / 2, the number of the second connecting pipes is 4 k / 4, and so on, the number of the nth connecting pipe is 4 k / 2 n .

[0013] By adopting the above technical solution, the dust suction ports and connecting pipes of this scale form a suitable duct dust suction structure, which ensures that the dust is fully sucked into the dust suction ports while reducing excessive negative pressure and excessive dust accumulation at the dust suction ports.

[0014] Optionally, the first connecting tube, the second connecting tube to the nth connecting tube all include mutually connected tube bodies and tube ends, the tube end of the first connecting tube is connected to the dust suction port, the tube end of the second connecting tube is connected to the tube body of the first connecting tube, and so on, the tube end of the nth connecting tube is connected to the tube body of the n-1th connecting tube.

[0015] By adopting the above technical solution and setting the pipe end, the connection between the connecting pipes and between the connecting pipes and the dust suction port is more stable.

[0016] Optionally, the tube body includes two symmetrically arranged and connected inclined tube sections, the tube ends of adjacent connecting tubes are connected at the connection between the two inclined tube sections, the inclined tube sections are arranged to be inclined upward, the axial directions of the two inclined tube sections form an angle of 150~170°, and the axial direction of the inclined tube section forms an angle of 75~85° with the axial direction of the tube end.

[0017] By adopting the above technical solution, in combination with the inclined pipe section and the angle within a specific range, the dust will encounter less obstruction when flowing through the connection between the pipe body and the pipe end. At the same time, the two dust streams that originally had different paths can flow more smoothly when they merge at the connection, and the stagnation is reduced when the two dust streams meet, thereby effectively reducing the local excessive concentration of dust caused by the stagnation. When the dust finally reaches the surface of the filter bag, it is not easy to adhere to and block the filter bag in large quantities.

[0018] Optionally, from the first connecting pipe, the second connecting pipe to the nth connecting pipe, the angle formed by the axial directions of the two inclined pipe sections increases successively.

[0019] By adopting the above technical solution, the closer to the induced draft duct, the greater the pressure. Therefore, with the increase in the angle of the inclined pipe section, the two dust streams can merge more smoothly at the connection point, further reducing the situation of excessive local concentration of dust.

[0020] Optionally, the connecting pipes include a first connecting pipe, a second connecting pipe, a third connecting pipe and a fourth connecting pipe, the first connecting pipe is connected between two adjacent dust suction ports, the second connecting pipe is connected between two adjacent first connecting pipes, the third connecting pipe is connected between two adjacent second connecting pipes, the fourth connecting pipe is connected between two adjacent third connecting pipes, and the air duct is connected to the fourth connecting pipe.

[0021] By adopting the above technical solution, the connection pipe setting method can better balance the dust collection efficiency and dust filtering effect, while reducing the setting cost of the connection pipe.

[0022] Optionally, the air collecting cover is provided with a protective shell, the protective shell covers the connecting pipe, and the air duct is passed through the protective shell.

[0023] By adopting the above technical solution, the protective shell protects the connecting pipe and reduces external interference.

[0024] Optionally, the dust collector is a bag dust collector.

[0025] In summary, this application has the following beneficial effects: 1. The air collecting hood designed in the present application is provided with a plurality of dust suction ports, through which the local negative pressure is dispersed, the negative pressure of each dust suction port is reduced, and the dust flow rate of the dust suction port is slowed down. Since the fiber mass is heavier than the dust, the dust is more easily sucked away by the dust suction port, and more fibers are left, thereby reducing the situation where the fibers enter the dust removal structure, and then reducing the situation where the fibers adhere to the filter bag and affect the air flow, improving the dust removal effect, and reducing the loss of fibers; under the connection of the first connecting pipe, the second connecting pipe to the nth connecting pipe, the dust passes through the first connecting pipe, the second connecting pipe to the nth connecting pipe in turn, so that the pressure of each dust suction port is gradually and evenly reduced, and at the same time, the dust entering the connecting pipe is fully flowed in the extended path, further promoting the dust that is easier to inhale to enter the dust collector first, and the dust that is more difficult to inhale to enter the dust collector later, and the dust contacts the filter bag first, which also reduces the situation where too much dust adheres to the filter bag in a short period of time and blocks the filter bag, thereby improving the dust filtering and dust removal effects.

[0026] 2. With the inclined pipe section and the angle within a specific range, the dust will encounter less obstruction when flowing through the connection between the pipe body and the pipe end. At the same time, the two dust streams that originally had different paths will merge more smoothly at the connection, and the stagnation will be reduced when the two dust streams meet, thereby effectively reducing the local excessive concentration of dust caused by stagnation. When it finally reaches the surface of the filter bag, it is not easy to adhere to and block the filter bag in large quantities. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a plan structure diagram of an embodiment of the present application.

[0028] Figure 2 It is a planar structural diagram of the gas collecting hood body of an embodiment of the present application.

[0029] Figure 3 It is a three-dimensional structural diagram of the air duct, connecting pipe and air collecting hood body of an embodiment of the present application.

[0030] Figure 4 It is a planar structural diagram of the third connecting pipe of the embodiment of the present application.

[0031] Figure 5 It is a planar structural diagram of the gas collecting hood and the protective shell of an embodiment of the present application.

[0032] Description of reference numerals: 1. Air collecting hood; 11. Dust suction port; 2. Air duct; 201. Oblique pipe section; 202. Pipe end; 21. First connecting pipe; 22. Second connecting pipe; 23. Third connecting pipe; 24. Fourth connecting pipe; 3. Dust collector; 4. Fan; 41. Exhaust pipe; 5. Protective shell. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-5This application is described in further detail.

[0034] The present application discloses a highly efficient dust removal structure. Figure 1 As shown, a high-efficiency dust removal structure includes an air duct 2, a connecting pipe and an air collecting hood 1, wherein the air duct 2 is connected to the connecting pipe, and the connecting pipe is connected to the air collecting hood 1.

[0035] The induced draft duct 2 is used to communicate with the dust collector 3. The dust collector 3 can be specifically a bag dust collector 3. The bag dust collector 3 is provided with a filter bag. The barrier effect of the filter bag can block and intercept the dust in the dust-containing gas to achieve dust filtration. The dust collector 3 is connected to a negative pressure mechanism, which includes a fan 4 and an exhaust pipe 41. The air inlet of the fan 4 is connected to the dust collector 3, and the air outlet of the fan 4 is connected to the exhaust pipe 41. When the fan 4 is running, negative pressure is generated, so that the air collecting hood 1 generates suction to absorb dust. The air collecting hood 1 can be set above the industrial equipment that generates dust. In this embodiment, the industrial equipment is specifically a combing machine, which is responsible for combing and shaping the fibers. The dust generated by the combing machine is sucked away by the air collecting hood 1 to reduce the impact of dust on the workshop environment.

[0036] like Figure 1 and Figure 2 As shown, the air collecting hood body 1 is provided with a plurality of dust suction ports 11 , and the air collecting hood body 1 is connected with the connecting pipe through the dust suction ports 11 , and dust enters the connecting pipe through the dust suction ports 11 .

[0037] like Figure 2 and Figure 3 As shown, the connecting pipes include a first connecting pipe 21, a second connecting pipe 22 to an nth connecting pipe, where n is a natural number ≥ 2. The first connecting pipe 21 is connected between two adjacent dust suction ports 11, the second connecting pipe 22 is connected between two adjacent first connecting pipes 21, and so on. The nth connecting pipe is connected between two adjacent n-1th connecting pipes, and the air duct 2 is connected to the nth connecting pipe.

[0038] Each dust suction port 11 is connected to one end of a first connecting tube 21, that is, each dust suction port 11 is only connected to one first connecting tube 21, and the number of dust suction ports 11 is associated with the number of connecting tubes. The number of dust suction ports 11 is 4k, k is a natural number ≥1, the number of first connecting tubes 21 is 4k / 2, the number of second connecting tubes 22 is 4k / 4, and so on. The number of the nth connecting tube is 4k / 2n.

[0039] In other embodiments, when the number of the dust suction ports 11 is 4, a total of a first connecting tube 21 and a second connecting tube 22 are provided, the number of the first connecting tubes 21 is 2, the number of the second connecting tube 22 is 1, the first connecting tube 21 is connected between two adjacent dust suction ports 11, the second connecting tube 22 is connected between two adjacent first connecting tubes 21, and the air duct 2 is connected to the second connecting tube 22.

[0040] like Figure 2 and Figure 3 As shown, in the present embodiment, when the number of the dust suction ports 11 is 16, a first connecting tube 21, a second connecting tube 22, a third connecting tube 23 and a fourth connecting tube 24 are provided in total, the number of the first connecting tubes 21 is 8, the number of the second connecting tubes 22 is 4, the number of the third connecting tubes 23 is 2, the number of the fourth connecting tube 24 is 1, the first connecting tube 21 is connected between two adjacent dust suction ports 11, the second connecting tube 22 is connected between two adjacent first connecting tubes 21, the third connecting tube 23 is connected between two adjacent second connecting tubes 22, the fourth connecting tube 24 is connected between two adjacent third connecting tubes 23, and the air duct 2 is connected to the fourth connecting tube 24.

[0041] Therefore, the dust suction port 11 and the connecting pipe can be set according to the area and range of dust suction. For example, the number of the dust suction port 11 can be 32, and the first connecting pipe 21, the second connecting pipe 22 to the sixth connecting pipe are set accordingly, which can balance the dust suction demand and the cost demand.

[0042] In the traditional dust removal method, only one dust suction port 11 is set on the air collecting hood 1, and the dust suction port 11 is directly connected to the air duct 2. In order to fully absorb the dust, the fan 4 is adjusted to generate a larger negative pressure, generate a larger wind speed, and drive a larger dust flow rate. However, lighter fibers will also be sucked into the dust suction port, which not only causes fiber waste, but also causes the fibers to reach the surface of the filter bag, blocking the pores of the filter bag, forcing the airflow to weaken, resulting in a weakened dust suction force.

[0043] In this embodiment, a plurality of dust suction ports 11 are provided on the air collecting hood body 1. The local negative pressure is dispersed through the plurality of dust suction ports 11. The negative pressure of each dust suction port 11 is reduced, and the dust flow rate of the dust suction port 11 is slowed down. Since the fiber is heavier than the dust, the dust is more easily sucked away by the dust suction port, and more fibers are retained, thereby reducing the situation where the fibers adhere to the filter bag and affect the airflow, and reducing the loss of fibers.

[0044] In addition, if a plurality of dust suction ports 11 are provided on the air collecting hood body 1, but the plurality of dust suction ports 11 are respectively connected to a pipe, and the ends of all the pipes converge and are connected to the front end of the same air duct 2, the dust removal structure will cause the dust collection process to be not smooth, and after a long period of continuous dust removal, there will be a problem of large fluctuations in the negative pressure of the dust collection.

[0045] Therefore, this embodiment adopts the method of coordinated connection of the first connecting pipe 21, the second connecting pipe 22 to the nth connecting pipe, and the dust passes through the first connecting pipe 21, the second connecting pipe 22 to the nth connecting pipe in sequence, so that the dust entering the connecting pipe through each dust suction port 11 can fully flow in the extended path, further promoting the dust that is easier to inhale to enter the dust collector 3 first, and the dust that is more difficult to inhale to enter the dust collector 3 later. The dust contacts the filter bag in turn, and also reduces the rate of too much dust adhering to the filter bag in a short period of time and blocking the filter bag, thereby improving the dust filtering and dust removal effect.

[0046] In this embodiment, the first connecting tube 21, the second connecting tube 22 to the nth connecting tube all include a tube body and a tube end 202. Taking the first connecting tube 21 as an example, two tube ends 202 are provided, and are respectively connected to the two ends of the tube body. The tube end 202 of the first connecting tube 21 is connected to the dust suction port 11, the tube end 202 of the second connecting tube 22 is connected to the tube body of the first connecting tube 21, the tube end 202 of the third connecting tube 23 is connected to the tube body of the second connecting tube 22, and so on, the tube end 202 of the nth connecting tube is connected to the tube body of the n-1th connecting tube.

[0047] like Figure 3 and Figure 4 As shown, a tube body and a tube end 202 are provided so that the connection between the connecting tubes and between the connecting tubes and the dust suction port 11 is more stable, and connecting tubes of different levels are distributed up and down, for example, the first connecting tube 21 is located at the bottom, the second connecting tube 22 is located above the first connecting tube 21, and the nth connecting tube is located at the top.

[0048] The pipe body is composed of two symmetrically arranged and connected inclined pipe sections 201, and the pipe ends 202 of adjacent connecting pipes are connected to the connection between the two inclined pipe sections 201. For example, the pipe end 202 of the second connecting pipe 22 is connected to the connection between the two inclined pipe sections 201 of the first connecting pipe 21.

[0049] The inclined pipe section 201 is arranged to be inclined upward, and the axial directions of the two inclined pipe sections 201 form an angle of 150~170°. The axial directions of the inclined pipe section 201 and the axial directions of the pipe end 202 form an angle of 75~85°. The axial directions of the two inclined pipe sections 201 increase successively from the first connecting pipe 21, the second connecting pipe 22 to the nth connecting pipe.

[0050] In this embodiment, the two oblique tube sections 201 of the first connecting tube 21 form an axial angle of 150°, and the oblique tube section 201 of the first connecting tube 21 and the tube end 202 form an axial angle of 75°; the two oblique tube sections 201 of the second connecting tube 22 form an axial angle of 155°, and the oblique tube section 201 of the second connecting tube 22 and the tube end 202 form an axial angle of 78°; the two oblique tube sections 201 of the third connecting tube 23 form an axial angle of 160°, and the oblique tube section 201 of the third connecting tube 23 and the tube end 202 form an axial angle of 80°; the two oblique tube sections 201 of the fourth connecting tube 24 form an axial angle of 170°, and the oblique tube section 201 of the fourth connecting tube 24 and the tube end 202 form an axial angle of 85°.

[0051] With the inclined pipe section 201 and the angle within a specific range, the dust encounters less obstruction when flowing through the connection between the pipe body and the pipe end 202. At the same time, the two dust streams that originally had different paths can flow more smoothly when joining at the connection, and the stagnation is reduced when the two dust streams meet. The closer to the induced draft duct 2, the greater the pressure. Therefore, with the increase in the angle of the inclined pipe section 201, the two dust streams can flow more smoothly when joining at the connection, thereby effectively reducing the problem of excessive local concentration of dust caused by stagnation, and finally a large area of ​​dust accumulation and adhesion to the filter bag when reaching the surface of the filter bag.

[0052] like Figure 3 and Figure 5 As shown, a protective shell 5 is fixedly arranged above the air collecting cover body 1, and the protective shell 5 covers the connecting pipe. The air duct 2 is passed through the top of the protective shell 5, so that the protective shell 5 is used to protect the connecting pipe and reduce external interference.

[0053] The implementation principle of an efficient dust removal structure in the embodiment of the present application is: Start the fan 4 of the negative pressure mechanism, and the air collecting hood 1 starts to absorb dust through the dust suction port 11. The multiple dust suction ports 11 disperse the local negative pressure, and the dust flow rate of the dust suction port 11 is slowed down. The dust passes through the first connecting pipe 21, the second connecting pipe 22 to the nth connecting pipe in turn, and the dust enters the air duct 2 and the dust collector 3 in turn, thereby reducing the situation where fibers enter the dust removal structure and hinder the airflow through the filter bag, thereby improving the dust filtering and dust removal effect.

[0054] This specific implementation manner is merely an explanation of the present application and is not a limitation of the present application. After reading this specification, those skilled in the art may make non-creative modifications to the specific implementation manner as needed, but such modifications are protected by the patent law as long as they are within the scope of the claims of the present application.

Claims

1. A high-efficiency dust removal structure, characterized in that: include: An air induced draft pipe (2), the air induced draft pipe (2) being used to communicate with a dust collector (3); An air collecting hood (1), wherein the air collecting hood (1) is provided with a plurality of dust suction ports (11); The connecting pipes include a first connecting pipe (21), a second connecting pipe (22) to an nth connecting pipe, wherein n is a natural number ≥ 2, the first connecting pipe (21) is connected between two adjacent dust suction ports (11), the second connecting pipe (22) is connected between two adjacent first connecting pipes (21), and so on, the nth connecting pipe is connected between two adjacent n-1th connecting pipes, and the air duct (2) is connected to the nth connecting pipe.

2. The high-efficiency dust removal structure according to claim 1, characterized in that: Each of the dust suction ports (11) is connected to one end of one of the first connecting pipes (21).

3. The high-efficiency dust removal structure according to claim 1 is characterized in that: The number of the dust suction ports (11) is 4k, k is a natural number ≥ 1, the number of the first connecting pipes (21) is 4k / 2, the number of the second connecting pipes (22) is 4k / 4, and so on, the number of the nth connecting pipe is 4k / 2n.

4. The high-efficiency dust removal structure according to claim 1 is characterized in that: The first connecting tube (21), the second connecting tube (22) to the nth connecting tube all comprise mutually connected tube bodies and tube ends (202); the tube end (202) of the first connecting tube (21) is connected to the dust suction port (11); the tube end (202) of the second connecting tube (22) is connected to the tube body of the first connecting tube (21); and so on and so forth; the tube end (202) of the nth connecting tube is connected to the tube body of the n-1th connecting tube.

5. The high-efficiency dust removal structure according to claim 4, characterized in that: The pipe body comprises two symmetrically arranged and connected oblique pipe sections (201); the pipe ends (202) of adjacent connecting pipes are connected to the connection between the two oblique pipe sections (201); the oblique pipe sections (201) are arranged to be inclined upward; the axial directions of the two oblique pipe sections (201) form an angle of 150 to 170 degrees; and the axial directions of the oblique pipe sections (201) and the pipe ends (202) form an angle of 75 to 85 degrees.

6. The high-efficiency dust removal structure according to claim 5, characterized in that: From the first connecting tube (21), the second connecting tube (22) to the nth connecting tube, the angle formed by the axial directions of the two inclined tube sections (201) increases successively.

7. The high-efficiency dust removal structure according to claim 1 is characterized in that: The connecting pipes comprise a first connecting pipe (21), a second connecting pipe (22), a third connecting pipe (23) and a fourth connecting pipe (24); the first connecting pipe (21) is connected between two adjacent dust suction ports (11); the second connecting pipe (22) is connected between two adjacent first connecting pipes (21); the third connecting pipe (23) is connected between two adjacent second connecting pipes (22); the fourth connecting pipe (24) is connected between two adjacent third connecting pipes (23); and the air duct (2) is connected to the fourth connecting pipe (24).

8. The high-efficiency dust removal structure according to claim 1, characterized in that: The air collecting cover (1) is provided with a protective shell (5), the protective shell (5) covers the connecting pipe, and the air duct (2) is passed through the protective shell (5).

9. The high-efficiency dust removal structure according to claim 1, characterized in that: The dust collector (3) is a bag dust collector (3).

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