Positive-pressure dust-containing gas purification equipment
By adopting the positive pressure air supply mode in the positive pressure dust-containing gas purification equipment, setting the inclined deflector and air intake end baffle, and designing the collection and extrusion device, the problems of equipment wear, uneven pressure control, poor sealing and dust explosion risks are solved, and efficient dust removal effect is achieved.
Patent Information
- Application Number
- CN202480003081.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-16
- Publication Date
- 2025-02-28
AI Technical Summary
The existing positive pressure dust-containing gas purification equipment has problems such as severe wear, uneven pressure control, poor sealing and dust explosion risk, and low dust removal efficiency.
Adopt positive pressure air supply mode to improve air flow distribution; set inclined deflectors along the air inlet of the cyclone device; set up air inlet end and baffle in the settlement chamber to achieve dust removal by sharp rotation of the air flow direction; through the design of the collection and extrusion device, the effective collection and storage of dust is achieved by using the blades and conical outlets.
It improves dust removal efficiency, avoids secondary dust, improves airflow distribution, reduces the problems of equipment wear and poor sealing, and reduces the risk of dust explosion.
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Abstract
Description
Technical Field
[0001] The disclosure of the present application relates to the field of air pollution control technology, and in particular to a positive pressure dust-containing gas purification device. Background Art
[0002] As an important facility in the prevention and control of air pollution, gas dust removal equipment is mainly used to purify harmful substances such as dust, powder, large dust particles, and lint contained in the gas in production and living places. By installing gas dust removal equipment in production and living places, the air can be effectively purified, and harmful pollution sources, especially gas or air pollution caused by fine particulate matter, can be reduced or even eliminated, thereby reducing the probability of ingesting harmful substances and protecting the health of workers and residents. Gas dust removal equipment can also reduce the residual rate of air pollutants in the atmosphere by effectively absorbing toxic and harmful substances in the air, thereby reducing the intensity of air pollution and improving the production and living environment.
[0003] However, existing gas dust removal equipment generally adopts negative pressure dust removal mode. Although negative pressure dust removal has advantages over positive pressure dust removal, such as high dust removal efficiency and stable operation, in the negative pressure dust removal mode, dust-laden gas enters the gas dust removal equipment, and the dust removal efficiency drops sharply due to uneven airflow distribution and unreasonable flow channel layout in the gas dust removal equipment; at the same time, positive pressure airflow is required in the production process of some industries, especially when the airflow carries particulate matter, fluff, etc., and it is urgent to develop and design positive pressure dust-laden gas purification equipment to control such pollutants.
[0004] At present, common positive pressure dust-containing gas purification equipment generally has problems such as severe equipment wear, uneven pressure control, poor sealing, and there may be a risk of dust explosion when handling metal dust.
[0005] In view of this, it is necessary to improve the flow channel layout in the positive pressure dust-containing gas purification equipment, improve the airflow distribution in the gas dust removal equipment, and improve the dust removal efficiency. Summary of the invention
[0006] In order to solve the above-mentioned prior art problems or part of them, the purpose of the present invention is to provide a positive pressure dust-containing gas purification equipment, which adopts a positive pressure air supply mode to improve the airflow distribution in the positive pressure dust-containing gas purification equipment and improve the dust removal efficiency.
[0007] According to one aspect of the present invention, a positive pressure dust-laden gas purification device is provided, the positive pressure dust-laden gas purification device comprising:
[0008] A frame, on which other main components of the positive pressure dust-laden gas purification device are arranged;
[0009] A cyclone device, the cyclone device is arranged on one side of the frame and is provided with an air inlet; a settling chamber, the settling chamber is arranged to be in communication with the cyclone device;
[0010] A purification chamber, which is arranged on the other side of the frame and communicated with the sedimentation chamber;
[0011] The collecting and squeezing device is arranged at the lower end of the frame and is connected to the lower end of at least one of the cyclone device, the settling chamber and the purification chamber to squeeze and collect the dust collected therein.
[0012] In some embodiments, an inclined guide plate is provided at the lower edge of the air inlet.
[0013] Furthermore, in some embodiments, the inclination angle of the inclined guide plate is the same as the helical pitch angle of the helical surface of the cyclone device.
[0014] In some embodiments, an air inlet end is provided at one side of the sedimentation chamber, and the air inlet end is located at a 2 / 3 height position of one side of the sedimentation chamber.
[0015] In some embodiments, the settling chamber has a baffle located on the opposite side of the air inlet end.
[0016] Further, in some embodiments, the gap between the baffle and the bottom of the sedimentation chamber is formed as an air outlet, and the cross-sectional area of the air outlet is 2-4 times, preferably 3 times, the cross-sectional area of the lower end of the sedimentation chamber, and the lower end of the sedimentation chamber is the connecting part between the sedimentation chamber and the collecting and squeezing device.
[0017] In some embodiments, the clean room comprises a filter cartridge assembly, and the filter cartridge assembly is disposed at an upper portion of the clean room, in a region between an outlet of the clean room and an area where the dust-laden gas enters the clean room.
[0018] In some embodiments, the collecting and squeezing device includes a shell, which is a long cylinder. The shell is arranged at the lower end of the frame, and the lower end of at least one of the cyclone device, the sedimentation chamber and the purification chamber is connected to the shell.
[0019] Further, in some embodiments, the shell has blades therein, the blades are arranged along the longitudinal direction of the shell, and the outer edges of the blades abut against the inner wall of the shell; a driving part is provided at one end of the shell in the longitudinal direction, and the driving part drives the blades to rotate.
[0020] Furthermore, in some other embodiments, the shell has a conical outlet, which is located at the other end of the shell in the longitudinal direction, and the bottom of the conical outlet is connected to the shell; the collecting and extruding device also has a collecting part, which is connected to the top of the conical outlet.
[0021] According to multiple embodiments of the present invention, a positive pressure dust-containing gas purification device is provided, which has at least one of the following advantages or a part of one of the advantages:
[0022] (1) Use positive pressure air supply mode, avoid negative pressure air supply mode, improve air flow distribution in dust removal equipment, and improve dust removal efficiency;
[0023] (2) By arranging an inclined guide plate at the lower edge of the air inlet of the cyclone device, the inclination angle of the inclined guide plate is the same as the helical line angle of the helical surface of the cyclone device, thereby avoiding secondary dusting, and the internal airflow distribution is more uniform, which is conducive to the sedimentation of dust and fluff;
[0024] (3) By setting the air inlet end at 2 / 3 of the height of one side of the settling chamber and setting the baffle plate on the opposite side of the air inlet end, the dust-laden gas collides with the baffle plate after entering the settling chamber, and the airflow direction changes sharply. At least a part of the dust is separated from the dust-laden gas under the action of the inertial force carried by the dust-laden gas, thereby achieving a partial dust removal effect;
[0025] (4) An air outlet is provided through the gap between the baffle and the interior of the settling chamber, and the cross-sectional area of the air outlet is 2-4 times the cross-sectional area of the lower end of the settling chamber. When the dust-laden gas is discharged into the purification chamber through the air outlet, due to the setting of the cross-sectional area of the air outlet, the wind speed of the dust-laden gas drops sharply when passing through the filter cartridge assembly, thereby avoiding dust and fluff from being raised due to excessive wind speed, and improving the dust removal effect of the settling chamber;
[0026] (5) By bringing the outer edge of the blades of the collecting and squeezing device into contact with the inner wall of the shell, the outer edge of the blades cooperates with the rotating blades to close the air valve and prevent air from blowing in;
[0027] (6) The conical outlet squeezes the dust and reduces the space for collecting dust, making it easier to store.
[0028] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS
[0029] These and / or other aspects and advantages of the present invention will become apparent and readily understood from the following description of the preferred embodiments in conjunction with the accompanying drawings, in which:
[0030] Figure 1A front view of a positive pressure dust-containing gas purification device according to an embodiment of the present invention;
[0031] Figure 2 for Figure 1 A schematic cross-sectional structure diagram of a positive pressure dust-laden gas purification device is shown;
[0032] Figure 3 for Figure 1 A schematic diagram of the structure in which an inclined guide plate is arranged at the air inlet of the cyclone device shown;
[0033] Figure 4 It is a schematic diagram of the three-dimensional structure of another positive pressure dust-containing gas purification device according to one embodiment of the present invention;
[0034] Figure 5 for Figure 1 The structural schematic diagram of the sedimentation chamber shown;
[0035] Figure 6 for Figure 5 A schematic diagram of the structure of the baffle and the gas outlet end of the settling chamber shown;
[0036] Figure 7 for Figure 1 The schematic diagram of the structure of the clean room shown;
[0037] Figure 8 for Figure 7 A partial enlarged view of the clean room shown;
[0038] Fig. 9 for Figure 1 The schematic structural diagram of the collecting and extruding device is shown. DETAILED DESCRIPTION
[0039] The features of the present invention are further described below through specific embodiments. The following description of the embodiments of the present invention with reference to the accompanying drawings is intended to explain the overall concept of the present invention and should not be construed as a limitation of the present invention.
[0040] See also Figure 1 In one embodiment of the present invention, a positive pressure dust-containing gas purification device 100 is provided, which can be applied to a wide range of fields such as removing dust, lint, etc.
[0041] The positive pressure dust-containing gas purification device 100 includes four main components, namely, a frame 10, a cyclone device 20, a settling chamber 30, and a purification chamber 40. Before the dust-containing gas enters the positive pressure dust-containing gas purification device 100, a positive pressure of the dust-containing gas is generated by an external air supply device, that is, the dust-containing gas is sent into the cyclone device 20 by the external air supply device.
[0042] Specifically, the frame 10 is used to support other main components of the positive-pressure dust-containing gas purification equipment 100. The positive-pressure dust-containing gas enters the cyclone device 20 from the air inlet 21. At least a portion of the dust in the dust-containing gas is separated from the dust-containing gas under the action of the centrifugal force generated when flowing through the cyclone device 20, thereby generating purified dust-containing gas.
[0043] The dust-laden gas purified by the cyclone device 20 enters the settling chamber 30 through the connecting pipe 60, and at least a portion of the dust is collided and settled under the action of the inertial force carried by the dust-laden gas.
[0044] The dust-containing gas that has been settled in the settling chamber 30 enters the purification chamber 40 for purification, and the purified gas flows out from the outlet 43 of the purification chamber 40. By using the three dust removal devices of the cyclone device 20, the settling chamber 30, and the purification chamber 40 to cooperate with each other, the problem of reduced purification efficiency caused by air flow fluctuations can be effectively overcome, the stability of dust removal operation can be improved, and the dust removal efficiency of the positive pressure dust-containing gas purification device 100 can be improved. For the specific structural design, please refer to the detailed description below.
[0045] It should be noted that the disadvantage of the negative pressure air supply mode is that: due to the formation of a low-pressure area relatively to the outside, the external air enters the positive-pressure dust-containing gas purification equipment 100 through the outlet 43 under the action of the pressure difference, causing uneven distribution of internal airflow and resulting in a decrease in dust removal efficiency.
[0046] In this embodiment, the positive-pressure dust-containing gas purification equipment 100 adopts a positive-pressure air supply mode, avoids a negative-pressure air supply mode, improves the airflow distribution in the dust removal equipment, and improves the dust removal efficiency.
[0047] The positive pressure dust-containing gas purification device 100 also includes a collecting and squeezing device 50 located at the lower end thereof for collecting and squeezing dust. It is understood that the collecting and squeezing device 50 can be arranged to communicate with the lower end of at least one of the cyclone device 20, the settling chamber 30 and the purification chamber 40 and squeeze and collect the dust collected therein.
[0048] The cyclone device 20, the sedimentation chamber 30, the purification chamber 40 and the collecting and squeezing device 50 are integrally connected inside the positive-pressure dust-laden gas purification equipment 100, which can effectively avoid the problem of uneven pressure control; and the cyclone device 20, the sedimentation chamber 30, the purification chamber 40 and the collecting and squeezing device 50 are tightly connected inside the positive-pressure dust-laden gas purification equipment 100, as an integrated equipment, avoiding the problem of poor sealing.
[0049] See also Figure 2Specifically, the cyclone device 20 includes an air inlet 21 and a centrifugal cyclone component 22. The air inlet direction of the air inlet 21 (i.e., the dust-laden gas flow direction) is perpendicular to the rotation axis direction of the centrifugal cyclone component 22. The dust-laden gas enters the cyclone device 20 from the air inlet 21, and at least a portion of the dust in the dust-laden gas is removed by the centrifugal cyclone component 22 of the cyclone device 20 using the positive pressure carried by the dust-laden gas. In one example, the gas flow rate at the air inlet 21 is 3-6 m / s.
[0050] The lower end 23 of the cyclone device 20 is connected to the collecting and extruding device 50. Under the action of the positive pressure carried by the dust-containing gas, at least a part of the dust in the dust-containing gas is separated from the dust-containing gas under the action of the centrifugal force generated when flowing through the centrifugal cyclone component 22 of the cyclone device 20, and enters the collecting and extruding device 50 through the lower end 23 of the cyclone device 20.
[0051] In another embodiment, see Figure 2 The lower end 34 of the settling chamber 30 is also configured to be connected to the collecting and squeezing device 50. At least a portion of the dust in the dust-containing gas is separated from the dust-containing gas under the action of the inertial force carried by the dust-containing gas, and enters the collecting and squeezing device 50 through the lower end 34 of the settling chamber 30.
[0052] like Figure 2 As shown, the dust-laden gas enters the settling chamber 30 from one side of the settling chamber 30 through the connecting pipe 60 of the cyclone device 20. In an alternative embodiment, in combination with Figure 1 The overall cross-sectional area of the interface size of the connecting pipe 60 and the cyclone device 20 is smaller than the overall cross-sectional area of the interface size of the connecting pipe 60 and the air inlet end 31 of the settling chamber 30. For example, the cross-sectional area of the connecting pipe 60 on one side of the settling chamber 30 is larger than the cross-sectional area of the connecting pipe 60 on one side of the cyclone device 20 (combined with reference Figure 1 ), the flow velocity of the dust-containing gas gradually decreases through the connecting pipe 60, which effectively reduces turbulence and is conducive to further improving the dust removal effect after entering the sedimentation chamber 30.
[0053] In a further embodiment, the lower end 44 of the purification chamber 40 is connected to the collecting and extruding device 50, and the dust-laden gas enters the purification chamber 40. After purification, at least a portion of the dust is separated from the dust-laden gas and enters the collecting and extruding device 50 through the lower end 44 of the purification chamber 40.
[0054] See also Figure 3In one embodiment, an inclined guide plate 211 is provided at the lower edge of the air inlet 21, and the inclination angle of the inclined guide plate 211 is the same as the angle of the spiral line 223 of the spiral surface 222 of the cyclone device 20. This arrangement prevents the dust-containing gas from being affected by turbulence, resulting in part of the separated dust being taken away again, generating secondary dust, and thus affecting the dust removal effect.
[0055] After simulating and analyzing the flow field inside the cyclone device 20, it can be seen that after the inclined guide plate is provided, the airflow distribution inside the cyclone device 20 is more uniform, which is conducive to the settling of dust and lint.
[0056] See also Figure 4 In an alternative embodiment, the positive pressure dust-containing gas purification device 100 can be configured to have air intake on one side or at a single end, or can also be configured to have air intake on two sides or at both ends, or multiple ends. Those skilled in the art can configure it as needed.
[0057] The following description is made by taking the two opposite ends of the air intake as an example. The two settling chambers 30 are respectively arranged on both sides of the purification chamber 40, for example, symmetrically arranged at its center; the cyclone devices 20 are respectively arranged to communicate with the settling chambers 30 on the same side, and a common purification chamber 40 is arranged in the middle of the positive pressure dust-containing gas purification device 100, so that idle space can be fully utilized and corresponding components can be saved, thereby improving dust removal efficiency.
[0058] See also Figure 5 The settling chamber 30 is configured as a rectangular parallelepiped structure, and of course, it can also be configured as a structure of any other suitable shape. The air inlet end 31 is located at one side of the settling chamber 30; preferably, the air inlet end 31 is configured to be located at a position 2 / 3h of a height h on one side of the settling chamber 30. The dust-laden gas enters the settling chamber 30 through the air inlet end 31 and is discharged from the settling chamber 30 through the air outlet end 33.
[0059] In one embodiment, the settling chamber 30 is further provided with a baffle 32, which is located on the opposite side of the air inlet end 31, for example, at the top of the settling chamber 30 and extends downward. The gap between the baffle 32 and the inside of the settling chamber 30 forms an air outlet end 33. Figure 5 As shown, the gas outlet 33 is arranged to be opposite to the gas inlet 31 through the baffle 32, that is, the gas inlet 31 is arranged at the upper left corner of the settling chamber 30, and the gas outlet 33 is arranged at the lower right corner of the settling chamber 30. In this way, after the dust-laden gas enters the settling chamber 30 from the gas inlet 31, it moves from top to bottom as a whole, and the flow path of the dust-laden gas to the gas outlet 33 is the longest, so it is the best choice in terms of gravity sedimentation and flow path, and achieves the best sedimentation effect.
[0060] In one embodiment, the gas flow rate in the settling chamber 30 is 7-12 m / s.
[0061] After simulating and analyzing the flow field inside the settling chamber 30, it can be seen that the dust-laden gas enters the settling chamber 30 through the air inlet end 31 and collides with the baffle 32, causing the airflow direction to turn sharply, and at least a portion of the dust is separated from the dust-laden gas under the action of the inertial force carried by the dust-laden gas.
[0062] See also Figure 6 , the cross-sectional area of the gas outlet 33 is 2-4 times, preferably 3 times, the cross-sectional area of the lower end 34 of the settling chamber 30, wherein the lower end 34 of the settling chamber 30 is the connection portion between the settling chamber 30 and the collecting and squeezing device 50. After simulating and analyzing the flow field between the purification chamber 40 and the settling chamber 30, it can be known that when the dust-laden gas is discharged through the gas outlet 33 and enters the purification chamber 40. Since the cross-sectional area of the gas outlet 33 is 2-4 times the cross-sectional area of the lower end 34 of the settling chamber 30, when the dust-laden gas passes through the filter cartridge assembly 42 of the purification chamber 40, the wind speed drops sharply, thereby avoiding dust and fluff from being raised due to excessive wind speed, and improving the dust removal effect of the settling chamber.
[0063] See also Figure 7 In one embodiment, the purification chamber 40 includes three components, namely, an air inlet 41 (which may be the same as the air outlet 33 or may be set separately, as long as it is connected to the air outlet 33), a filter cartridge assembly 42 and an outlet 43. For example, two filter cartridge assemblies 42 may be set in the purification chamber 40, which are arranged side by side at the top of the purification chamber 40 and fixedly connected at one end close to the outlet 43.
[0064] Specifically, the filter cartridge assembly 42 is disposed at the upper portion of the purification chamber 40, in the inner region of the purification chamber 40 between the outlet 43 and the air inlet 41. The filter cartridge assembly 42 further includes a filter cartridge 421, which is provided with a plurality of filter holes for dust-laden gas to pass through. When the dust-laden gas enters the purification chamber 40, it passes through the filter cartridge assembly 42 and is discharged from the purification chamber 40 through the outlet 43.
[0065] See also Figure 8 Further, in one embodiment, the filter cartridge assembly 42 includes a filter cartridge 421, a pulse generating component 422, a pulse valve 423, an air storage tank and an electronic control system. Filter cartridges 421 of different specifications can be selected according to actual working conditions, and the size of the air storage tank can also be adjusted to save costs.
[0066] When the dust-containing gas passes through the filter cartridge 421, at least a portion of the dust is blocked outside, and the filtered gas passes through the filter cartridge 421 and is discharged through the outlet 43; wherein the gas storage tank contains compressed air, and the gas storage tank is connected to the pulse generating component 422 through the pulse valve 423, and the pulse valve 423 is detected by the electronic control system through the pressure sensor of the filter cartridge assembly 42 (see Figure 7 ) is automatically controlled to open or close according to the change of the internal pressure value. When the pulse valve 423 is opened, the compressed air in the gas storage tank is ejected from the storage tank through the pulse valve 423 and the pulse generating component 422 to spray the inside of the filter cartridge 421 to remove the dust attached to the surface of the filter cartridge assembly 421.
[0067] In one embodiment, see Fig. 9 The lower end 44 of the purification chamber 40 is connected to the collecting and squeezing device 50. The dust-containing gas enters the purification chamber 40 and passes through the filter cartridge assembly 42. At least a portion of the dust is separated from the dust-containing gas and isolated outside the filter cartridge assembly 42. Part of the dust directly falls into the collecting and squeezing device 50, and part of the dust adheres to the outer wall of the filter cartridge 421. The electronic control system automatically opens the pulse valve 423 through the change of the pressure value on the pressure sensor, and the gas in the gas storage tank is discharged from the pulse valve 423. The filter cartridge 421 is cleaned by pulse reverse blowing, so that the dust falls off and falls into the collecting and squeezing device 50.
[0068] See also Fig. 9 In one embodiment, the collecting and squeezing device 50 includes three components: a shell 51, a driving part 52 and a collecting part 53.
[0069] Specifically, the housing 51 is a long cylinder, and can be any other desired shape. The housing 51 is disposed at the lower end of the frame 10 , and the lower end of at least one of the cyclone device 20 , the settling chamber 30 and the purification chamber 40 is connected to the housing 51 .
[0070] Further, in one embodiment, the shell 51 is connected to the lower end 23 of the cyclone device 20, and at least a portion of the dust in the dust-containing gas enters the shell 51 through the lower end 23; the shell 51 is connected to the lower end 34 of the sedimentation chamber 30, and at least a portion of the dust in the dust-containing gas enters the shell 51 through the lower end 34; the shell 51 is connected to the lower end 44 of the sedimentation chamber 40, and at least a portion of the dust in the dust-containing gas enters the shell 51 through the lower end 44.
[0071] In one embodiment, the shell 51 has blades 511 therein, and the blades 511 are arranged along the longitudinal direction of the shell 51. The outer edges of the blades 511 abut against the inner walls of the shell 51, and cooperate with the blades 511 to close the air valve, thereby avoiding wind leakage during the downstream transportation process.
[0072] In one embodiment, the driving part 52 is disposed at one end of the housing 51 in the longitudinal direction, and the driving part 52 drives the blade 511 to rotate. The housing 51 has a conical outlet 512, and the conical outlet 512 is located at the other end of the housing 51 in the longitudinal direction. The conical bottom of the conical outlet 512 is connected to the housing 51, and the collecting part 53 is connected to the conical top of the conical outlet 512. Under the driving part 52 driving the blade 511 to rotate, dust is continuously accumulated in the direction of the conical outlet 512, and finally squeezed at the conical outlet 512 and enters the collecting part 53, which is conducive to reducing the space occupied by collecting dust and is more convenient for dust storage.
[0073] During operation, the blades 511 rotate to transport the dust out, and the conical outlet 512 is set to have a predetermined taper, such as 10-30 degrees, so that the dust is squeezed here, so that the space for collecting dust is reduced, and the dust is squeezed and stored. In addition, the rotation of the blades 511 also plays a role in closing the air valve, so that there will be no wind in the downstream transportation process.
[0074] The working principle of the positive pressure dust-containing gas purification device 100 provided in this embodiment is briefly described as follows:
[0075] The dust-containing gas is sent into the air inlet 21 by positive pressure, and first enters the cyclone device 20 from the air inlet 21. The centrifugal cyclone component 22 in the cyclone device 20 is used to make the dust-containing gas rotate at high speed close to the edge, thereby generating a large centrifugal force. A part of the large / heavy dust falls down into the collecting and squeezing device 50, and a part of the dust-containing gas enters the sedimentation chamber 30. Under the impact of the baffle 32, the larger / heavier dust settles down under the action of gravity after collision and falls into the collecting and squeezing device 50. Another part of the dust-containing exhaust gas enters the filter cartridge device 40. Under the interception effect of the filter cartridge 42, the dust is intercepted on the outer wall of the filter cartridge 42, and is made to fall into the collecting and squeezing device 50 by pulse reverse blowing. Finally, the clean gas is discharged from the outlet 43.
[0076] According to multiple embodiments of the present invention, a positive pressure dust-containing gas purification device is provided, which has at least one of the following advantages or a part of one of the advantages:
[0077] (1) Use positive pressure air supply mode, avoid negative pressure air supply mode, improve air flow distribution in dust removal equipment, and improve dust removal efficiency;
[0078] (2) By arranging an inclined guide plate at the lower edge of the air inlet of the cyclone device, the inclination angle of the inclined guide plate is the same as the helical line angle of the helical surface of the cyclone device, thereby avoiding secondary dusting, and the internal airflow distribution is more uniform, which is conducive to the sedimentation of dust and fluff;
[0079] (3) By setting the air inlet end at 2 / 3 of the height of one side of the settling chamber and setting the baffle plate on the opposite side of the air inlet end, the dust-laden gas collides with the baffle plate after entering the settling chamber, and the airflow direction changes sharply. At least a part of the dust is separated from the dust-laden gas under the action of the inertial force carried by the dust-laden gas, thereby achieving a partial dust removal effect;
[0080] (4) An air outlet is provided through the gap between the baffle and the interior of the settling chamber, and the cross-sectional area of the air outlet is 2-4 times the cross-sectional area of the lower end of the settling chamber. When the dust-laden gas is discharged into the purification chamber through the air outlet, due to the setting of the cross-sectional area of the air outlet, the wind speed of the dust-laden gas drops sharply when passing through the filter cartridge assembly, thereby avoiding dust and fluff from being raised due to excessive wind speed, and improving the dust removal effect of the settling chamber;
[0081] (5) By bringing the outer edge of the blades of the collecting and squeezing device into contact with the inner wall of the shell, the outer edge of the blades cooperates with the rotating blades to close the air valve and prevent air from blowing in;
[0082] (6) The conical outlet squeezes the dust and reduces the space for collecting dust, making it easier to store.
[0083] The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiment. Those skilled in the art will understand that these embodiments can be changed without departing from the principles and spirit of the overall concept of the present invention, and these changes should also be regarded as falling within the protection scope of the present invention. The scope of the present invention is defined by the claims and their equivalents.
Claims
1. A positive pressure dust-containing gas purification device, comprising a frame, characterized in that: The dust-containing gas purification equipment also includes: A cyclone device, the cyclone device is arranged on one side of the frame and is provided with an air inlet; a settling chamber, the settling chamber being arranged to communicate with the cyclone device; A purification chamber, which is arranged on the other side of the frame and communicates with the sedimentation chamber; The collecting and squeezing device is arranged at the lower end of the frame and is connected to the lower end of at least one of the cyclone device, the settling chamber and the purification chamber to squeeze and collect the dust collected therein.
2. The positive pressure dust-containing gas purification equipment according to claim 1, characterized in that: An inclined guide plate is arranged at the lower edge of the air inlet.
3. The positive pressure dust-containing gas purification equipment according to claim 2, characterized in that: The inclination angle of the inclined guide plate is the same as the helical pitch angle of the helical surface of the cyclone device.
4. The positive pressure dust-containing gas purification equipment according to any one of claims 1 to 3, characterized in that: An air inlet end is arranged on one side of the sedimentation chamber, and the air inlet end is located at a 2 / 3 height position of one side of the sedimentation chamber.
5. The positive pressure dust-containing gas purification equipment according to claim 4, characterized in that: The settling chamber has a baffle, which is located on the opposite side of the air inlet end.
6. The positive pressure dust-containing gas purification equipment according to claim 5, characterized in that: A gap between the baffle plate and the bottom of the settling chamber forms a gas outlet, and a cross-sectional area of the gas outlet is set to be 2 to 4 times the cross-sectional area of the lower end of the settling chamber.
7. The positive pressure dust-containing gas purification equipment according to any one of claims 1 to 3, characterized in that: The clean room comprises a filter cartridge assembly, and the filter cartridge assembly is arranged at the upper part of the clean room, in the area between the outlet of the clean room and the area where the dust-laden gas enters the clean room.
8. The positive pressure dust-containing gas purification equipment according to any one of claims 1 to 3, characterized in that: The collecting and squeezing device comprises a shell, which is a long cylinder. The shell is arranged at the lower end of the frame, and the lower end of at least one of the cyclone device, the settling chamber and the purification chamber is connected to the shell.
9. The positive pressure dust-containing gas purification equipment according to claim 8, characterized in that: The shell has blades in it, the blades are arranged along the longitudinal direction of the shell, and the outer edges of the blades abut against the inner wall of the shell; a driving part is provided at one end of the shell in the longitudinal direction, and the driving part drives the blades to rotate.
10. The positive pressure dust-containing gas purification equipment according to claim 9, characterized in that: The shell has a conical outlet, the conical outlet is located at the other end of the shell in the longitudinal direction, and the conical bottom of the conical outlet is connected to the shell; The collecting and squeezing device also has a collecting portion, which is connected to the cone top of the conical outlet.