CN112044910B - Dust pelletizing system and grit aggregate production line - Google Patents
Dust pelletizing system and grit aggregate production line Download PDFInfo
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- CN112044910B CN112044910B CN202010739272.9A CN202010739272A CN112044910B CN 112044910 B CN112044910 B CN 112044910B CN 202010739272 A CN202010739272 A CN 202010739272A CN 112044910 B CN112044910 B CN 112044910B
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- suction
- dust
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- powder
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
- B08B15/02—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area using chambers or hoods covering the area
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
- B01D46/023—Pockets filters, i.e. multiple bag filters mounted on a common frame
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
Abstract
The invention relates to the technical field of dust removal, and discloses a dust removal system and a sand aggregate production line. The dust removal system comprises a suction device, a powder suction pipeline, a dust suction pipeline and an adjusting mechanism, one end of the powder suction pipeline is communicated with the suction device, the other end of the powder suction pipeline is communicated with a point to be sucked, one end of the dust suction pipeline is communicated with the suction device, the other end of the dust suction pipeline is communicated with the point to be sucked, and the adjusting mechanism is used for adjusting distribution of suction pressure of the suction device in the powder suction pipeline and the dust suction pipeline. In the dust removal process, the dust removal system can flexibly adjust the suction pressure of the dust suction pipeline and the dust suction pipeline through the adjusting mechanism according to the required dust suction amount and the required dust suction amount, so that the dust removal effect is not influenced under the conditions of lower energy consumption and lower investment cost.
Description
Technical Field
The invention relates to the technical field of dust removal, in particular to a dust removal system and a sandstone aggregate production line comprising the same.
Background
The dust removal system is widely applied to the sandstone aggregate industry, and utilizes a configured induced draft fan to draft air to form negative pressure to absorb dust generated in the production process, and the dust is filtered and purified by a dust remover to form clean gas and then is discharged, so that the production line achieves a good working environment, and high-quality finished products are prepared.
The currently used dust removal system is divided into a dust suction pipeline and a dust suction pipeline according to different dust suction working conditions, wherein the dust suction pipeline is used for sucking away redundant stone powder in the production line, and the dust suction pipeline is used for sucking away dust raising gas generated in the production line. In order to reduce the investment cost of the induced draft fan in the prior art, the powder suction pipeline and the dust suction pipeline can share one induced draft fan, the concentration of the stone powder is changed in the production process of the gravel aggregate, when the concentration of the stone powder is higher, the suction pressure of the powder suction pipeline is also required to be higher, and when the concentration of the stone powder is lower, the powder removal function can be completed only by using smaller suction pressure. In order to reduce the total energy consumption of the dust removal system, when the concentration of the stone powder is reduced, the suction pressure of the powder suction pipeline is generally selected to be reduced, and the powder suction pipeline and the dust suction pipeline share one draught fan, so that the suction pressure of the dust suction pipeline is reduced, the condition that the dust is raised due to insufficient suction pressure of the dust suction pipeline is easy to occur, and the dust removal effect is influenced. If different draught fans are respectively adopted for the powder suction pipeline and the dust suction pipeline or the suction pressure of the dust suction pipeline is increased, the energy consumption of the system is higher, and the investment cost is higher.
Disclosure of Invention
The invention aims to provide a dust removal system and a sand and stone aggregate production line comprising the same so as not to influence the dust removal effect under the conditions of lower energy consumption and lower investment cost.
In order to achieve the above object, in one aspect, the present invention provides a dust removing system, including a suction device, a powder suction pipe, a dust suction pipe, and an adjusting mechanism, where one end of the powder suction pipe is communicated with the suction device, the other end of the powder suction pipe is used to communicate with a point to be sucked, one end of the dust suction pipe is communicated with the suction device, the other end of the dust suction pipe is used to communicate with the point to be sucked, and the adjusting mechanism is used to adjust distribution of suction pressure of the suction device in the powder suction pipe and the dust suction pipe.
Optionally, the suction pressure of the dust suction duct is greater than the suction pressure of the dust suction duct.
Optionally, the adjusting mechanism includes a communicating pipe, the communicating pipe is connected between the powder suction pipe and the dust suction pipe, and the adjusting mechanism is configured to adjust the suction pressure of the powder suction pipe and the dust suction pipe by adjusting the communicating area of the communicating pipe to the powder suction pipe and the dust suction pipe.
Optionally, the adjusting mechanism includes one communicating pipe, a valve for controlling on-off of the communicating pipe is arranged on the communicating pipe, and the opening size of the valve is adjustable.
Optionally, the adjusting mechanism includes a plurality of the communicating pipes, and each of the communicating pipes is provided with a valve for controlling on/off of the communicating pipe.
Optionally, the dust removal system comprises a controller for controlling operation of the valve.
Optionally, the other end of the powder suction pipeline is provided with a plurality of powder suction branch pipes, and each powder suction branch pipe corresponds to one powder suction point to be sucked.
Optionally, the other end of the dust suction pipeline is provided with a plurality of dust suction branch pipes, and each dust suction branch pipe corresponds to one point to be sucked.
Optionally, the dust removing system includes a dust remover, the suction device is communicated with an air outlet of the dust remover, and the one end of the powder suction pipeline and the one end of the dust suction pipeline are communicated with an air inlet of the dust remover.
The invention also provides a sand aggregate production line which comprises the dust removal system.
Through the technical scheme, in the dust removing process, the suction pressure of the powder suction pipeline and the dust suction pipeline can be flexibly adjusted through the adjusting mechanism according to the required powder suction amount and the required dust suction amount, so that the suction pressure of the powder suction pipeline is matched with the powder suction amount, the suction pressure of the dust suction pipeline is matched with the dust suction amount, an additional suction device or the suction pressure of the dust suction pipeline is not required to be additionally increased, and the dust removing system is lower in energy consumption, lower in investment cost and better in dust removing effect.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural view of one embodiment of a dust removing system according to the present invention.
Description of the reference numerals
10-a powder suction pipeline, 11-a powder point to be sucked, 20-a dust suction pipeline, 21-a dust suction branch pipe, 22-a dust point to be sucked, 30-a communication pipeline, 31-a valve, 40-a dust remover, 41-a shell, 42-a filter bag, 43-a storage bin and 50-a suction device.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
In the present invention, the use of directional terms such as "upper, lower, left, right" generally means the orientation shown in the drawings without being described to the contrary. "inner and outer" refer to the inner and outer contours of the respective component itself.
The invention provides a dust removing system which comprises a suction device 50, a powder suction pipeline 10, a dust suction pipeline 20 and an adjusting mechanism, wherein one end of the powder suction pipeline 10 is communicated with the suction device 50, the other end of the powder suction pipeline 10 is used for being communicated with a point 11 to be sucked, one end of the dust suction pipeline 20 is communicated with the suction device 50, the other end of the dust suction pipeline 20 is used for being communicated with a point 22 to be sucked, and the adjusting mechanism is used for adjusting distribution of suction pressure of the suction device 50 in the powder suction pipeline 10 and the dust suction pipeline 20.
Through the technical scheme, in the dust removing process, the suction pressure of the powder suction pipeline 10 and the suction pressure of the dust suction pipeline 20 can be flexibly adjusted through the adjusting mechanism according to the required powder suction amount and the required dust suction amount, so that the suction pressure of the powder suction pipeline 10 is matched with the powder suction amount, the suction pressure of the dust suction pipeline 20 is matched with the dust suction amount, an additional suction device is not required to be added or the suction pressure of the dust suction pipeline is not required to be increased, and the dust removing system is low in energy consumption, low in investment cost and good in dust removing effect.
In the above, it can be understood that the suction device 50 forms a negative pressure state in the dust suction pipeline 10 and the dust suction pipeline 20 communicated therewith through air suction, and sucks the stone dust at the point to be sucked 11 and the dust at the point to be sucked 22, thereby achieving the effect of dust removal.
In the dust removal process, the dust-containing gas can be sucked away from the dust-to-be-sucked point 11 by the dust-to-be-sucked pipeline 10 with higher suction pressure due to higher concentration of particles at the dust-to-be-sucked point 11; because the particle concentration at the point 22 to be cleaned is low, the suction pipe 20 only needs low suction pressure to suck the dust-containing gas away from the point 22 to be cleaned. Therefore, when the dust removing system is designed, it is designed that the suction pressure of the dust suction duct 10 is greater than the suction pressure of the dust suction duct 20. In designing the system, the pressure of the two pipes can be tested by the pressure sensor to ensure that the suction pressure of the powder suction pipe 10 is greater than the suction pressure of the dust suction pipe 20. When there is a case where the suction pressure of the powder suction duct 10 is not greater than the dust suction duct 20, the suction pressure of both ducts can be adjusted by adjusting the pipe diameter of the powder suction duct 10 or the dust suction duct 20. In this case, when the powder suction amount of the powder suction pipe 10 at the point 11 to be sucked needs to be reduced, the suction pressure of the suction device 50 can be appropriately reduced (i.e. the actual operation power of the suction device 50 is reduced), and meanwhile, the suction pressure of the powder suction pipe 10 is divided into parts by the adjusting mechanism to the dust suction pipe 20, so that not only the powder suction requirement of the powder suction pipe 10 can be met, but also the dust suction effect of the dust suction pipe 20 can be ensured not to be affected, and the generation of dust raise due to the reduction of the pressure in the dust suction pipe 20 is avoided.
Specifically, according to an embodiment of the present invention, the adjusting mechanism may include a communicating pipe 30, the communicating pipe 30 is connected between the powder suction pipe 10 and the dust suction pipe 20 (it is understood that the communicating pipe 30 is also communicated with the powder suction pipe 10 and the dust suction pipe 20), and the adjusting mechanism is configured to adjust the magnitude of the suction pressure of the powder suction pipe 10 and the dust suction pipe 20 by adjusting the communicating area of the communicating pipe 30 to the powder suction pipe 10 and the dust suction pipe 20.
In the dust removal process, when more stone powder needs to be removed from the powder point 11 to be sucked, the communication area between the powder suction pipeline 10 and the dust suction pipeline 20 can be reduced, so that the powder suction pipeline 10 has higher suction pressure; when the point 11 to be sucked needs to remove less stone powder, the power of the suction device 50 can be reduced, and at the same time, the communication area between the powder suction duct 10 and the dust suction duct 20 is increased, and part of the suction pressure of the powder suction duct 10 is distributed to the dust suction duct 20 through the communication duct 30.
In the above, the adjusting mechanism may only include one communicating pipe 30, a valve 31 for controlling on/off of the communicating pipe 30 may be disposed on the communicating pipe 30, and the opening size of the valve 31 may be set to be adjustable. When in use, when the powder suction pipeline 10 and the dust suction pipeline 20 need to suck dust according to the designed air quantity, the valve 31 can be closed; when the powder point 11 to be sucked needs to remove less stone powder, the opening size of the valve 31 can be controlled to divide the air volume of the powder suction pipeline 10 into a part of air volume to the dust suction pipeline 20, so that the powder suction pipeline 10 and the dust suction pipeline 20 respectively have proper air volume. It will be appreciated that in this case the communication duct 30 has a larger internal cross-sectional area.
Of course, the adjusting mechanism may also include a plurality of communicating conduits 30, and each communicating conduit 30 is provided with a valve 31 for controlling the on-off state thereof. When the dust collector is used, the opening number of the valve 31 (namely the opening number of the communicating pipelines 30) is controlled to control the size of the communicating area between the dust suction pipeline 10 and the dust suction pipeline 20. It will be appreciated that in this case, the communication duct 30 may have a small inner cross-sectional area. This arrangement can increase the adjustment accuracy.
In the present invention, the dust removing system may further include a controller, and the controller may be configured to control the operation of the valve 31, that is, to control the opening, closing and opening size of the valve 31.
In the present invention, the other end of the powder suction pipeline 10 may be provided with a plurality of powder suction branch pipes (it can be understood that the plurality of powder suction branch pipes are respectively communicated with the other end of the powder suction pipeline 10), and each of the powder suction branch pipes corresponds to one to-be-sucked powder point 11. The other end of the dust suction duct 20 may be provided with a plurality of branch dust suction pipes 21 (it is understood that the plurality of branch dust suction pipes 21 are respectively communicated with the other end of the dust suction duct 20), and each branch dust suction pipe 21 corresponds to one point 22 to be sucked (see fig. 1). Therefore, the dust removal system can simultaneously realize the dust removal of a plurality of dust suction points 11 and dust suction points 22, thereby not only improving the dust removal efficiency, but also reducing the investment cost.
In the present invention, the suction device 50 may be any device capable of drawing air, such as an induced draft fan, as shown in FIG. 1. The dust removal system may include a motor for driving the induced draft fan to operate. The motor can be electrically connected with the controller to control the operation of the controller, and further control the operation of the induced draft fan.
In the present invention, the dust removing system may further include a dust remover 40, and in this case, the suction device 50 is in communication with an air outlet of the dust remover 40, and the one end of the powder suction duct 10 and the one end of the dust suction duct 20 are in communication with an air inlet of the dust remover 40 (see fig. 1).
The dust collector 40 is used to filter and purify the sucked dust into clean gas. The dust separator 40 may have any suitable configuration, and the invention is not limited.
According to one embodiment of the dust collector of the present invention, as shown in fig. 1, the dust collector 40 may include a housing 41 defining a cavity therein, the housing 41 being provided with an air inlet and an air outlet communicating with the cavity, the cavity being provided with a filter bag 42 for filtering dust, and a storage bin 43 communicating with the cavity being provided below the housing 41. In the dust removal process, the dust-containing gas and the dust-containing gas enter the cavity and then are filtered by the filter bag 42, the filtered dust falls to the storage bin 43 for storage, and the filtered clean gas enters the induced draft fan from the gas outlet and is discharged.
Wherein, the dust collector 40 may have two air inlets, and the one end of the powder suction duct 10 and the one end of the dust suction duct 20 are connected to the two air inlets, respectively, as shown in fig. 1. Of course, in other embodiments, the dust collector 40 may have one air inlet, and the one end of the powder suction duct 10 and the one end of the dust suction duct 20 may be combined and connected to the one air inlet.
In the present invention, it should be noted that the number of the dust suction branch pipes and the dust suction branch pipes 21 can be determined according to the number of the actual dust suction points 11 and the actual dust suction points 22. The inner diameter and the number of the communicating pipes 30 can be determined according to the difference between the suction pressures of the dust suction pipe 10 and the dust suction pipe 20 and the adjustment accuracy of the suction pressure.
In one embodiment, when the powder suction amount of the powder suction point 11 to be sucked is required to be reduced by 20%, the controller can send out an instruction after calculation to reduce the operation frequency of the motor by 10%, so that the suction amount of an induced draft fan driven by the motor is reduced by 10%, the controller calculates again to send corresponding signals to the valves 31 and sequentially open the valves 31, and as the suction pressure of the powder suction pipeline 10 is greater than the suction pressure of the dust suction pipeline 20, the suction pressure of the dust suction pipeline 20 is continuously increased and the dust suction capacity is continuously enhanced as the opening number of the valves 31 is continuously increased based on the pressure difference balance effect, so that the dust suction capacity before the frequency of the motor is reduced is gradually achieved, and the dust suction effect is ensured not to be influenced; in addition, since the suction pressure of the powder suction duct 10 is continuously distributed to the dust suction duct 20 through the communication duct 30, the suction amount distributed to the powder suction point 11 will be reduced again on the basis of a reduction in the motor frequency by 10%, thereby achieving the target of a reduction in the powder suction amount of the powder suction point 11 by 20%. If the working condition changes and the powder suction amount of the point 11 to be sucked needs to be increased by 20%, the controller sends out an instruction after calculation, increases the running frequency of the motor and then closes the valves 31 in sequence, thereby achieving the aim.
The dust removal system of the invention also has the following advantages:
compared with the prior art, in order to meet the regulation function of the stone powder removal amount, the air quantity configuration of the dust collection pipeline needs to be increased on the basis of the normal dust collection effect;
according to the invention, by adopting the plurality of communicating pipelines, when the air quantity of the powder suction pipeline and the air quantity of the dust suction pipeline need to be allocated, the system can calculate through the controller and control the corresponding valves on the communicating pipelines to open and close, and the control is simple and the adjusting effect is good.
The invention also provides a sand aggregate production line which comprises the dust removal system.
In the sand aggregate production line, the point 11 to be sucked can be a dust removing device such as an air separation box, and the point 22 to be sucked can be a belt conveyor dust lifting point, a chute dust lifting point and the like
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. The invention is not described in detail in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.
Claims (8)
1. A dust removal system is characterized by comprising a suction device (50), a powder suction pipeline (10), a dust suction pipeline (20) and an adjusting mechanism, wherein one end of the powder suction pipeline (10) is communicated with the suction device (50), the other end of the powder suction pipeline (10) is used for being communicated with a point (11) to be sucked, one end of the dust suction pipeline (20) is communicated with the suction device (50), the other end of the dust suction pipeline (20) is used for being communicated with a point (22) to be sucked, the adjusting mechanism is used for adjusting distribution of suction pressure of the suction device (50) in the powder suction pipeline (10) and the dust suction pipeline (20), and the suction pressure of the powder suction pipeline (10) is larger than that of the dust suction pipeline (20); the adjusting mechanism comprises a communicating pipeline (30), the communicating pipeline (30) is connected between the powder suction pipeline (10) and the dust suction pipeline (20), and the adjusting mechanism is set to adjust the suction pressure of the powder suction pipeline (10) and the dust suction pipeline (20) by adjusting the communicating area of the communicating pipeline (30) to the powder suction pipeline (10) and the dust suction pipeline (20).
2. A dust-removing system according to claim 1, wherein the adjusting mechanism comprises one of the communicating pipes (30), a valve (31) for controlling the on-off of the communicating pipe (30) is arranged on the communicating pipe (30), and the opening size of the valve (31) is adjustable.
3. A dusting system according to claim 1, characterized in that said adjusting mechanism comprises a plurality of said communication ducts (30), each of said communication ducts (30) being provided with a valve (31) for controlling the opening and closing thereof.
4. A dusting system according to claim 2 or 3, characterized in that the dusting system comprises a controller for controlling the operation of the valve (31).
5. A dust removing system according to claim 1, wherein the other end of the powder suction pipeline (10) is provided with a plurality of powder suction branch pipes, and each powder suction branch pipe corresponds to one powder suction point (11).
6. A dusting system according to claim 1, characterized in that said other end of said dust suction duct (20) is provided with a plurality of dust suction branches (21), each of said dust suction branches (21) corresponding to one of said points (22) to be dusted.
7. A dusting system according to claim 1, characterized in that the dusting system comprises a duster (40), that the suction device (50) is in communication with an air outlet of the duster (40), and that the one end of the dust suction duct (10) and the one end of the dust suction duct (20) are in communication with an air inlet of the duster (40).
8. A sand and stone aggregate production line, characterized by comprising the dust removal system according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010739272.9A CN112044910B (en) | 2020-07-28 | 2020-07-28 | Dust pelletizing system and grit aggregate production line |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010739272.9A CN112044910B (en) | 2020-07-28 | 2020-07-28 | Dust pelletizing system and grit aggregate production line |
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| CN112044910A CN112044910A (en) | 2020-12-08 |
| CN112044910B true CN112044910B (en) | 2022-04-08 |
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| Publication number | Publication date |
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| CN112044910A (en) | 2020-12-08 |
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