Low-wind-resistance graded spinning type primary dust purification device

Abstract

The invention discloses a low-wind-resistance grading spinning type dust primary purification device, and relates to the technical field of ventilation and dedusting, the low-wind-resistance grading spinning type dust primary purification device comprises a dedusting device body, the upper part of the dedusting device body is provided with an air inlet pipe, the lower part of the air inlet pipe is connected with an air inlet diverging body through a flange, and the air inlet diverging body is connected with a wind flow spinning mechanism; the airflow spinning mechanism is connected with the dust removal device body, a dust grading mechanism is arranged in the dust removal device body, an air collecting and exhausting mechanism is arranged on the lower portion of the dust grading mechanism, and a dust cleaning mechanism is arranged on the lower portion of the air collecting and exhausting mechanism. By adopting the low-wind-resistance grading spinning type primary dust purification device, large-particle dust in dust can be effectively reduced, the dust removal burden of various efficient dust removers is reduced, the working efficiency of the efficient dust removers is improved, the operation cost of ventilation and dust removal is reduced, and meanwhile the device has the advantages of being simple in structure, convenient to install, wide in application range and high in practicability. And the working state is stable.

Description

Technical Field

[0001] The invention relates to the technical field of ventilation and dust removal, in particular to a low-wind resistance graded self-spinning dust primary purification device. Background Art

[0002] In the production process of industrial and mining enterprises, affected by the production process, rock drilling, blasting, shoveling and crushing in the mining industry; storage, transportation, crushing, grinding and washing of minerals in the mineral processing industry; storage, transportation, crushing and grinding of coal in the thermal power industry; cutting, grinding and polishing of building materials in the construction industry; production and transportation of cement; cutting, grinding and polishing in the furniture industry; welding of components in the electronics industry, etc., all aspects of social production will generate a lot of dust. If the dust generated in the production process of industrial and mining enterprises is not handled in time, it will inevitably lead to excessive dust in the working environment, which will not only seriously affect the working environment, but also threaten the health and life safety of the staff.

[0003] At present, various industrial and mining enterprises mainly adopt various measures such as spray dust reduction, foam dust reduction, electrostatic dust removal, ventilation dust removal, etc. to reduce dust concentration and improve the working environment. Among them, ventilation dust removal has been widely used because of its simple structure, wide adaptability, convenient operation and maintenance, and good dust removal effect. It is one of the most widely used dust reduction methods. This method mainly controls the dust source effectively, leads the dust-containing airflow to the dust collector through the pipeline, and uses the dust collector to purify the dust in the dirty air. Conventional dust purification methods include mechanical, water bath, bag type, etc. Various purification methods have their own characteristics and scope of application, and have achieved very good results. However, for some industries with large dust production, high dust concentration, and large dust particle size, such as the coal industry, building materials processing industry, mining industry, furniture processing industry, etc., in the process of daily dust control, they will face a common problem. Due to the large dust particle size and high dust concentration, when the dust removal system is working, the amount of dust collected is large, the cleaning frequency is high, and the dust removal effect is significantly reduced. This greatly increases the workload of the dust collector, and also brings troubles to the subsequent cleaning work and dust treatment, increases the maintenance cost of the dust removal system, reduces the service life of the dust collector, and increases the burden on the enterprise in disguise. How to effectively handle large dust particles in the early stage has become the focus of people's attention.

[0004] The dust collectors currently used, such as bag-type dust collectors and water bath dust collectors, have very high dust removal efficiencies, which can even reach over 95%, especially for respirable dust with an aerodynamic diameter of less than 15μm. However, during the generation and migration of dust, there will be a large amount of dust larger than 15μm, even reaching tens of microns or even hundreds of microns. The presence of these dusts seriously affects the working efficiency of the dust removal system, which is a waste of resources for high-efficiency dust collectors. Using these high-efficiency dust collectors to isolate and collect large dust particles not only affects the efficiency of the dust collector, but also increases the frequency and difficulty of cleaning the dust collector due to the presence of large dust particles, reducing the service life of the dust collector and increasing the burden on the enterprise. Summary of the invention

[0005] The purpose of the present invention is to provide a low-drag graded self-spinning dust primary purification device to solve the problem that high-efficiency dust collectors cannot effectively grade and separate large dust particles with a large aerodynamic diameter and effectively treat the collected dust after separation.

[0006] To achieve the above-mentioned objectives, the present invention provides a low-resistance graded spinning type dust primary purification device, comprising a dust removal device body, an air inlet pipe is arranged on the upper part of the dust removal device body, the lower part of the air inlet pipe is connected to an air inlet diffuser through a flange, the air inlet diffuser is connected to an air flow spinning mechanism, the air flow spinning mechanism is connected to the dust removal device body, a dust classification mechanism is arranged in the dust removal device body, an air collection and exhaust mechanism is arranged at the lower part of the dust collection and exhaust mechanism, and a dust cleaning mechanism is arranged at the lower part of the air collection and exhaust mechanism.

[0007] Preferably, the wind flow spinning mechanism includes an upper air guide cover and a lower air guide cover, the lower air guide cover and the upper air guide cover are connected to the inner sleeve plate by welding, fan guide fins are welded on the inner sleeve plate, and a plurality of fan guide fins are provided, and the plurality of fan guide fins are connected to the outer sleeve plate, and the outer sleeve plate is fixed to the dust removal device body by bolts.

[0008] Preferably, the dust classification mechanism comprises a classification mechanism 1 and a classification mechanism 2, the classification mechanism 2 is connected to the classification mechanism 1 via a connecting rod, and the connecting rod is welded to the dust classification mechanism.

[0009] Preferably, the grading mechanism 1 includes a mechanism cylinder, an upper air guide plate and an inner air guide plate, the inner air guide plate is connected to the mechanism cylinder, the upper part of the mechanism cylinder is connected to the upper air guide plate, the lower part of the mechanism cylinder is connected to the dust collecting funnel, and a lower sealing plate is arranged between the dust collecting funnel and the mechanism cylinder.

[0010] Preferably, the second grading mechanism comprises a grading body, a second inner air guide plate and a second dust collecting funnel, the second dust collecting funnel is connected to the lower part of the grading body, and the grading body is connected to the second inner air guide plate.

[0011] Preferably, the second grading mechanism is arranged inside the first grading mechanism, the mechanism cylinder and the grading body are both hexagonal cylinder structures, and an angle of 120° is naturally formed between two adjacent plates of the cylinder.

[0012] Preferably, the air collecting and exhausting mechanism comprises an exhaust mechanism body, a gas guide tube and a gas guide plate, the gas guide plate is arranged at the lower part of the exhaust mechanism body, the gas guide tube is arranged in the exhaust mechanism body, and the gas guide tube is connected to the dust collecting funnel.

[0013] Preferably, an air outlet pipe is provided on the side of the exhaust mechanism body.

[0014] Preferably, the dust cleaning mechanism comprises a dust collecting bin and an ash discharge valve, the ash discharge valve is connected to the dust collecting bin, and the upper part of the dust collecting bin is connected to the gas guide plate.

[0015] Therefore, the present invention adopts the above-mentioned low wind resistance graded self-spinning dust primary purification device, which can effectively reduce large dust particles in the dust, reduce the dust removal burden of various high-efficiency dust collectors, improve the working efficiency of high-efficiency dust collectors, and reduce the operating cost of ventilation dust removal. The dust removal device has the characteristics of simple structure, easy installation, wide application range, stable working state, etc.

[0016] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of an embodiment of a low-drag graded self-spinning dust primary purification device of the present invention; Figure 2 It is a structural schematic diagram of the wind flow spinning mechanism of the present invention; Figure 3 It is a structural schematic diagram of the grading mechanism 1 of the present invention; Figure 4 It is a structural schematic diagram of the second grading mechanism of the present invention; Figure 5 It is a structural schematic diagram of the air outlet duct of the present invention; Figure 6 A three-dimensional diagram of a grading mechanism 1 of the present invention; Reference numerals 1. Air inlet pipe; 2. Air inlet gradually expanding body; 3. Wind flow self-spinning mechanism; 31. Upper air guide cover; 32. Lower air guide cover; 33. Outer cover; 34. Inner cover; 35. Fan guide blades; 4. Classification mechanism one; 41. Mechanism cylinder; 42. Upper air guide plate; 43. Inner air guide plate; 44. Dust collecting funnel; 45. Lower sealing plate; 5. Classification mechanism two; 51. Classification body; 52. Inner air guide plate two; 53. Dust collecting funnel two; 6. Connecting rod; 7. Dust removal device body; 8. Air collection and exhaust mechanism; 9. Air outlet pipe; 10. Dust cleaning mechanism; 11 Dust collecting bin; 12. Ash discharge valve. DETAILED DESCRIPTION

[0018] The technical solution of the present invention is further described below through the accompanying drawings and embodiments.

[0019] Unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0020] Example See also Figure 1-6 The present invention provides a low-resistance graded self-spinning dust primary purification device, including a dust removal device body 7, an air inlet pipe 1 is arranged on the upper part of the dust removal device body 7, the lower part of the air inlet pipe 1 is connected to the air inlet diffuser 2 through a flange, the air inlet diffuser 2 is connected to the wind flow self-spinning mechanism 3, the wind flow self-spinning mechanism 3 is connected to the dust removal device body 7, a dust classification mechanism is arranged inside the dust removal device body 7, an air collection and exhaust mechanism 8 is arranged at the lower part of the dust classification mechanism, and a dust cleaning mechanism 10 is arranged at the lower part of the air collection and exhaust mechanism 8.

[0021] The wind flow spinning mechanism 3 includes an upper wind guide cover 31 and a lower wind guide cover 32. The lower wind guide cover 32 and the upper wind guide cover 31 are connected to the inner sleeve plate 34 by welding. The inner sleeve plate 34 is welded with fan guide fins 35. There are multiple fan guide fins 35. The multiple fan guide fins 35 are connected to the outer sleeve plate 33. The fan guide fins 35 are uniformly welded to the inner and outer sleeve plates by welding 6-8 fan guide fins 35. The outer sleeve plate 33 is fixed to the dust removal device body 7 by 6-8 bolts. The wind flow spinning mechanism 3 can transform the airflow entering the air inlet diffuser 2 into a rotating airflow through the action of the fan guide fins 35.

[0022] The dust classification mechanism comprises a classification mechanism 1 4 and a classification mechanism 2 5. The classification mechanism 2 5 is connected to the classification mechanism 1 4 via a connecting rod 6. The connecting rod 6 is welded to the dust classification mechanism.

[0023] The classification mechanism 14 includes a mechanism cylinder 41, an upper air guide plate 42 and an inner air guide plate 43. The inner air guide plate 43 is connected to the mechanism cylinder 41. The upper part of the mechanism cylinder 41 is connected to the upper air guide plate 42. The lower part of the mechanism cylinder 41 is connected to the dust collecting funnel 44. A lower sealing plate 45 is provided between the dust collecting funnel 44 and the mechanism cylinder 41. The classification mechanism 14 introduces the rotating air volume into the classification mechanism 14 by using the upper air guide plate 42 and the inner air guide plate 43. The 120° angle formed between two adjacent cylinder plates in the six-sided cylinder of the classification mechanism 14 is used to change the movement direction of the dust-containing airflow to separate larger particles of dust in the dust-containing airflow. The separated dust flows into the dust cleaning mechanism 10 through the dust collecting funnel 44. The classification mechanism 14 is connected to the dust removal device body 7 by welding.

[0024] The grading mechanism 2 5 includes a grading body 51, an inner air guide plate 2 52 and a dust collecting funnel 2 53. The dust collecting funnel 2 53 is connected to the lower part of the grading body 51, and the grading body 51 is connected to the inner air guide plate 2 52. The grading mechanism 2 5 uses the inner air guide plate 2 52 to introduce the rotating air volume into the grading mechanism 2 5. The grading body 51 has a six-sided cylindrical structure, and a 120° angle is naturally formed between two adjacent plates of the cylinder. The 120° angle formed between two adjacent cylinder plates in the six-sided cylinder of the grading mechanism 2 5 is used to change the movement direction of the dust-containing airflow to separate large particles of dust in the dust-containing airflow. The separated dust flows into the dust cleaning mechanism 10 through the dust collecting funnel 2 53. The grading mechanism 2 5 is connected to the grading mechanism 1 4 by welding through a connecting rod 6.

[0025] The air collecting and exhausting mechanism 8 comprises an exhausting mechanism body 81, a gas guide tube 82 and a gas guide plate 83. The gas guide plate 83 is arranged at the lower part of the exhausting mechanism body 81. The exhausting mechanism body 81 is provided with a gas guide tube 82. The gas guide tube 82 is connected with the dust collecting funnel 44. The airflow passing through the grading mechanism 1 4 and the grading mechanism 2 5 is collected in the airflow guide tube 82. Under the joint action of the semicircular guide ring at the lower end of the gas guide tube 82 and the gas guide plate 83 at the bottom of the dust removing device body 7, the airflow enters the exhaust device from the lower side of the air collecting and exhausting mechanism 8 and is discharged through the air outlet pipe 9 connected with the exhaust device.

[0026] The dust cleaning mechanism 10 includes a dust collecting bin 11 and an ash discharge valve 12 . The ash discharge valve 12 is connected to the dust collecting bin 11 . The upper portion of the dust collecting bin 11 is connected to the gas guide plate 83 . When dust accumulates to a certain amount, the dust can be cleaned through the ash discharge valve 12 .

[0027] Therefore, the present invention adopts the above-mentioned low wind resistance graded self-spinning dust primary purification device, which can effectively reduce large dust particles in the dust, reduce the dust removal burden of various high-efficiency dust collectors, improve the working efficiency of high-efficiency dust collectors, and reduce the operating cost of ventilation dust removal. The dust removal device has the characteristics of simple structure, easy installation, wide application range, stable working state, etc.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that they can still modify or replace the technical solution of the present invention with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of the present invention.

Claims

1. Low wind resistance graded self-spinning dust primary purification device, characterized by: It includes a dust removal device body, an air inlet pipe is arranged on the upper part of the dust removal device body, the lower part of the air inlet pipe is connected to the air inlet diffuser through a flange, the air inlet diffuser is connected to the wind flow spinning mechanism, the wind flow spinning mechanism is connected to the dust removal device body, a dust classification mechanism is arranged in the dust removal device body, an air collection and exhaust mechanism is arranged at the lower part of the dust collection and exhaust mechanism, and a dust cleaning mechanism is arranged at the lower part of the air collection and exhaust mechanism.

2. The low-drag graded self-spinning dust primary purification device according to claim 1 is characterized in that: The wind flow spinning mechanism includes an upper air guide cover and a lower air guide cover, the lower air guide cover and the upper air guide cover are connected to the inner sleeve plate by welding, the inner sleeve plate is welded with fan guide fins, a plurality of the fan guide fins are provided, and the plurality of the fan guide fins are connected to the outer sleeve plate, and the outer sleeve plate is fixed to the dust removal device body by bolts.

3. The low-drag graded self-spinning dust primary purification device according to claim 2 is characterized in that: The dust classification mechanism comprises a classification mechanism 1 and a classification mechanism 2, wherein the classification mechanism 2 is connected to the classification mechanism 1 via a connecting rod, and the connecting rod is welded to the dust classification mechanism.

4. The low-drag graded self-spinning dust primary purification device according to claim 3 is characterized by: The grading mechanism 1 includes a mechanism cylinder, an upper air guide plate and an inner air guide plate, the inner air guide plate is connected to the mechanism cylinder, the upper part of the mechanism cylinder is connected to the upper air guide plate, the lower part of the mechanism cylinder is connected to the dust collecting funnel, and a lower sealing plate is arranged between the dust collecting funnel and the mechanism cylinder.

5. The low-drag graded self-spinning dust primary purification device according to claim 4 is characterized in that: The second grading mechanism comprises a grading body, a second inner air guide plate and a second dust collecting funnel. The second dust collecting funnel is connected to the lower part of the grading body, and the grading body is connected to the second inner air guide plate.

6. The low-drag graded self-spinning dust primary purification device according to claim 5 is characterized by: The second grading mechanism is arranged inside the first grading mechanism. Both the mechanism cylinder and the grading body are six-sided cylinder structures, and a 120° angle is naturally formed between two adjacent plates of the cylinder.

7. The low-drag graded self-spinning dust primary purification device according to claim 6 is characterized in that: The air collecting and exhausting mechanism comprises an exhausting mechanism body, a gas guide tube and a gas guide plate, wherein the gas guide plate is arranged at the lower part of the exhausting mechanism body, the gas guide tube is arranged in the exhausting mechanism body, and the gas guide tube is connected to the dust collecting funnel.

8. The low-drag graded self-spinning dust primary purification device according to claim 7 is characterized in that: An air outlet pipe is arranged on the side of the exhaust mechanism body.

9. The low-drag graded self-spinning dust primary purification device according to claim 8 is characterized in that: The dust cleaning mechanism comprises a dust collecting bin and a dust discharging valve, wherein the dust discharging valve is connected to the dust collecting bin, and the upper part of the dust collecting bin is connected to the gas guide plate.

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