CN112903523B - Method for adjusting compaction density of dust compactor - Google Patents
Method for adjusting compaction density of dust compactor Download PDFInfo
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- CN112903523B CN112903523B CN202110114993.5A CN202110114993A CN112903523B CN 112903523 B CN112903523 B CN 112903523B CN 202110114993 A CN202110114993 A CN 202110114993A CN 112903523 B CN112903523 B CN 112903523B
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N9/00—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
- G01N9/36—Analysing materials by measuring the density or specific gravity, e.g. determining quantity of moisture
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
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Abstract
The invention provides a method for adjusting the compaction density of a dust compactor, which comprises the steps of testing the wind pressure in a pipeline communicated with the dust compactor, the weight of a heavy hammer arranged at the outlet end of the dust compactor and the density of pressed powder obtained after compression in advance to obtain the corresponding relation among the wind pressure, the weight of the heavy hammer and the density of the pressed powder; and adjusting the weight of the heavy hammer according to the actually acquired wind pressure according to the corresponding relation to finish the adjustment of the compaction density of the dust compactor. Through the mode, the optimum weight of the heavy hammer can be determined according to the obtained corresponding relation when the air pressure of the pipeline changes, and the weight of the heavy hammer is adjusted by increasing or decreasing the number of the corresponding balancing weights, so that the compression density of the dust compactor can be effectively adjusted, the optimal density of the powder cake can be obtained, the dust compression efficiency is guaranteed, and meanwhile, the potential safety hazard that dust is flammable and explosive is effectively eliminated.
Description
Technical Field
The invention relates to the technical field of dust compactors, in particular to a method for adjusting the compaction density of a dust compactor.
Background
In the production of the light textile industry such as cotton, wool, hemp, chemical fiber and the like, a large amount of dust is usually generated, and the dust not only can cause adverse effects on the surrounding environment and the health of workers, but also can bring about potential safety hazards such as fire, explosion and the like. Therefore, in order to effectively improve the production environment of the textile industry and guarantee the production safety, dust collection equipment is necessary to collect and treat the generated dust. In a common dust removing device, a dust compactor is an important component of the dust removing device, and is generally used for separating and collecting dust and short fibers in an air flow, compressing the dust and the short fibers into a relatively compact state, and discharging the compressed dust, so that the dust is effectively prevented from affecting the surrounding environment.
For example, CN202620917U discloses a dust compactor, in which a screw shaft is disposed in a housing, a compressing speed-reducing motor is disposed on one side of the housing, an output end of the compressing speed-reducing motor is connected to one end of the screw shaft, an end cover is disposed at an outlet end of the housing via a hinge, and a balancing weight is disposed outside the end cover. Based on such mode of setting, the dust that gets into in this dust compactor is compressed into comparatively inseparable state under the combined action of screw shaft and end cover, struts the end cover discharge that is provided with the balancing weight again to reduced the volume of dust, and avoided the dust to fly upward at the collection in-process, in order to improve the collection efficiency of dust.
However, the existing dust compactor is difficult to adjust the compaction density. When the compaction density is too low, the cake formed by the dust has relatively large volume, is easy to scatter and has poor dust collection effect; when the compaction density is too high, the energy consumption of the compression process is high, the consumed time is long, and the dust collection efficiency is low. Therefore, how to effectively adjust the compaction density of the dust compactor in the working process so as to adapt to different working conditions still remains a problem to be solved urgently at present.
In view of the above, it is necessary to design a method for adjusting the compaction density of a dust compactor to solve the above problems.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a method for adjusting the compaction density of a dust compactor, which adjusts the weight of a heavy hammer according to different wind pressures in a pipeline so as to adjust the compaction density of the dust compactor, ensures the dust compression efficiency, ensures the higher density of powder cakes, and eliminates the potential safety hazards of flammability and explosiveness.
In order to achieve the purpose, the invention provides a method for adjusting the compaction density of a dust compactor, which comprises the following steps:
s1, testing wind pressure in a pipeline communicated with a dust compactor, the weight of a heavy hammer arranged at the outlet end of the dust compactor and the density of a pressed powder obtained after compression in advance to obtain the corresponding relation among the wind pressure, the weight of the heavy hammer and the density of the pressed powder;
and S2, adjusting the weight of the heavy hammer according to the corresponding relation obtained in the step S1 and the actually acquired wind pressure to finish the adjustment of the compaction density of the dust compactor.
As a further improvement of the present invention, in step S1, the obtaining of the corresponding relationship specifically includes the following steps:
s11, when the wind pressure is fixed, gradually increasing the weight of the heavy hammer, and testing the density of the powder cake obtained by the heavy hammers with different weights;
s12, drawing a curve of the density of the pressed powder along with the weight change of the heavy hammer according to the test result of the step S11, and determining the optimal density of the pressed powder and the weight of the heavy hammer corresponding to the optimal density of the pressed powder according to the curve to obtain the weight of the heavy hammer and the density of the pressed powder corresponding to the wind pressure;
and S13, adjusting the wind pressure, and repeating the steps S11 to S12 to obtain the corresponding relation among the wind pressure, the weight of the heavy hammer and the density of the powder cake.
As a further improvement of the invention, the weight is composed of a plurality of weight-balancing weights with equal weight, and the weight of the weight can be adjusted by increasing or decreasing the number of the weight-balancing weights.
As a further improvement of the present invention, in step S12, the determination of the optimal compact density specifically includes the following steps:
drawing a curve of the density of the pressed powder changing along with the weight of the heavy hammer by taking the weight of the heavy hammer as an abscissa and the density of the pressed powder as an ordinate;
calculating slopes corresponding to the weights on the curve in sequence from small to large according to the weight of the heavy punch, stopping calculating subsequent slopes when the obtained slope is lower than a preset slope threshold, and acquiring a first weight and a first compact density corresponding to the slope position;
and when the acquired first compact density is not lower than a preset lowest density threshold value, taking the first compact density as the optimal compact density.
As a further improvement of the present invention, in step S12, when the obtained first compact density is lower than the lowest density threshold, the compact densities corresponding to weights larger than the weight of the first weight are sequentially compared with the lowest density threshold in descending order of the weight, and the first second compact density not lower than the lowest density threshold is used as the optimal compact density.
As a further improvement of the present invention, in step S12, the preset lowest density threshold refers to: the cake can ensure the lowest density of shape integrity when discharged from the outlet end of the dust compactor.
As a further improvement of the present invention, in step S12, the preset slope threshold is 0.1 to 0.3.
As a further improvement of the present invention, in step S11, the density of the compact is calculated from the mass of the collected compact and the thickness of the compact.
As a further improvement of the invention, in step S11, the mass of the pressed powder is collected by a weight sensor arranged at the bottom of the pressed powder collecting tray; the quality of the pressed powder is collected by a displacement sensor arranged above the pressed powder collecting disc.
As a further improvement of the invention, the wind pressure is collected by a wind pressure sensor arranged in the pipeline.
The beneficial effects of the invention are:
(1) According to the invention, through researching the corresponding relation among the air pressure in the pipeline, the weight of the heavy hammer and the density of the powder cake, the optimum weight of the heavy hammer can be determined in time according to the obtained corresponding relation when the air pressure of the pipeline changes, and then the weight of the heavy hammer is adjusted by increasing or decreasing the number of the corresponding counter weights, so that the effective adjustment of the compression density of the dust compactor is realized, the optimal powder cake density is obtained, and the potential safety hazard of flammability and explosiveness of dust is effectively eliminated while the dust compression efficiency is ensured.
(2) When the method is used for researching the relation among the wind pressure, the weight of the heavy hammer and the density of the pressed powder, the optimal density of the pressed powder is selected by drawing a relation curve between the weight of the heavy hammer and the density of the pressed powder under the constant wind pressure and according to the change rule of the slope in the curve and the combined action of the lowest density threshold of the pressed powder. Based on the selection mode, the shape integrity of the pressed powder cake obtained after compression can be guaranteed when the pressed powder cake is discharged from the outlet end of the dust compactor, secondary dust pollution caused by insufficient density of the powder cake after scattering is avoided, and the potential safety hazard of flammability and explosiveness caused by dust is effectively eliminated; meanwhile, the selection mode can also avoid the problems that the density of the pressed powder increases slowly and the compression rate is obviously reduced after the weight of the heavy hammer is too large, so that the weight of the heavy hammer is increased to achieve a better density improving effect, and the higher dust compression efficiency is kept.
(3) In the prior art, when the air pressure of a pipeline is small, the quantity of dust entering a dust compactor through the pipeline is small, and the density of a pressed powder obtained by compression under the same pressure condition is high; when the air pressure of the pipeline is high, the quantity of dust entering the dust compactor in the same time is increased, the density of the pressed powder obtained by compression under the same pressure condition is relatively low, the pressed powder obtained by compression under different air pressures cannot meet the requirements easily, and the compression efficiency is integrally low. The invention selects the pipe wind pressure as the adjustment signal of the compaction density, and changes the weight of the heavy hammer as the specific adjustment means, so that the compaction density of the dust compactor can be accurately and effectively adjusted in the simplest and most convenient and efficient manner, thereby effectively solving the problems and meeting the requirements of practical application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in detail below with reference to specific embodiments.
In addition, it is also to be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
The invention provides a method for adjusting the compaction density of a dust compactor, which comprises the following steps:
s1, testing wind pressure in a pipeline communicated with a dust compactor, the weight of a heavy hammer arranged at the outlet end of the dust compactor and the density of a pressed powder obtained after compression in advance to obtain a corresponding relation among the wind pressure, the weight of the heavy hammer and the density of the pressed powder;
and S2, adjusting the weight of the heavy hammer according to the corresponding relation obtained in the step S1 and the actually acquired wind pressure to finish the adjustment of the compaction density of the dust compactor.
Specifically, in an embodiment of the present invention, the obtaining of the corresponding relationship in step S1 specifically includes the following steps:
s11, selecting a certain wind pressure, gradually increasing the weight of the heavy hammer under the wind pressure condition, and testing the density of the pressed powder obtained by the heavy hammers with different weights.
The weight of the weight can be adjusted by increasing or decreasing the number of the balancing weights. In one embodiment of the present invention, the weight of the weight is increased gradually from 1 to n according to the number of the counter weights, and the density of the pressed powder obtained by the weight with different weight is tested.
The density of the pressed powder is calculated according to the collected mass of the pressed powder and the thickness of the pressed powder; the mass of the pressed powder is collected by a weight sensor arranged at the bottom of the pressed powder collecting disc; the quality of the pressed powder is collected by a displacement sensor arranged above the pressed powder collecting disc.
And S12, drawing a curve of the density of the pressed powder changing along with the weight of the heavy hammer according to the test result of the step S11, and determining the optimal density of the pressed powder and the weight of the heavy hammer corresponding to the optimal density of the pressed powder according to the curve to obtain the weight of the heavy hammer and the density of the pressed powder corresponding to the wind pressure.
In an embodiment of the present invention, the determining of the optimal compact density specifically includes the following steps:
drawing a curve of the density of the pressed powder changing along with the weight of the heavy hammer by taking the weight of the heavy hammer as an abscissa and the density of the pressed powder as an ordinate;
calculating slopes corresponding to the weights on the curve in sequence according to the weight sequence of the heavy punch from small to large, stopping calculation of subsequent slopes when the obtained slope is lower than a preset slope threshold, and acquiring a first weight and a first cake density corresponding to the slope position;
when the obtained first compact density is not lower than a preset lowest density threshold value, taking the first compact density as the optimal compact density;
and when the obtained first compact density is lower than the lowest density threshold, sequentially comparing the compact densities corresponding to the weights of the weights larger than the weight of the first weight with the lowest density threshold from small to large, and taking the first second compact density not lower than the lowest density threshold as the optimal compact density.
Wherein the preset lowest density threshold value is: the lowest density of shape integrity can be ensured when the compact is discharged from the outlet end of the dust compactor; the preset slope threshold value is 0.1-0.3, and is preferably 0.2.
And S13, adjusting the wind pressure, and repeating the steps S11 to S12 to obtain the corresponding relation among the wind pressure, the weight of the heavy hammer and the density of the pressed powder.
In one embodiment of the present invention, the wind pressure is collected by a wind pressure sensor disposed in the pipeline, and the weight of the weight is collected by a weight sensor disposed at the bottom of the weight.
In one embodiment of the invention, the information collected by the wind pressure sensor and the heavy hammer weight sensor and the displacement sensor arranged on the powder cake collecting disc are transmitted to the control system together, and the control system performs calculation to improve the calculation efficiency and realize the efficient adjustment of the dust compactor compression density.
In summary, the invention provides a method for adjusting the compaction density of a dust compactor, which comprises testing the wind pressure in a pipeline communicated with the dust compactor, the weight of a heavy hammer arranged at the outlet end of the dust compactor and the density of a pressed powder obtained after compression in advance to obtain the corresponding relation among the wind pressure, the weight of the heavy hammer and the density of the pressed powder; and adjusting the weight of the heavy hammer according to the actually acquired wind pressure according to the corresponding relation to finish the adjustment of the compaction density of the dust compactor. Through the mode, the optimum weight of the heavy hammer can be determined in time according to the obtained corresponding relation when the air pressure of the pipeline changes, and the weight of the heavy hammer is adjusted by increasing or decreasing the number of the corresponding balancing weights, so that the effective adjustment of the compression density of the dust compactor is realized, the optimal density of the pressed powder is obtained, the dust compression efficiency is ensured, and meanwhile, the potential safety hazards of flammability and explosiveness of dust are effectively eliminated.
Although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the present invention.
Claims (8)
1. A dust compactor compaction density adjusting method is characterized by comprising the following steps:
s1, testing wind pressure in a pipeline communicated with a dust compactor, the weight of a heavy hammer arranged at the outlet end of the dust compactor and the density of a pressed powder obtained after compression in advance to obtain the corresponding relation among the wind pressure, the weight of the heavy hammer and the density of the pressed powder;
s2, according to the corresponding relation obtained in the step S1, adjusting the weight of the heavy hammer according to the actually acquired wind pressure, and completing adjustment of the compaction density of the dust compactor;
in step S1, the obtaining of the corresponding relationship specifically includes the following steps:
s11, when the wind pressure is fixed, gradually increasing the weight of the heavy hammer, and testing the density of the powder cake obtained by the heavy hammers with different weights;
s12, drawing a curve of the cake density changing along with the weight of the heavy hammer according to the test result of the step S11, and determining the optimal cake density and the weight of the heavy hammer corresponding to the optimal cake density according to the curve;
s13, adjusting the wind pressure, and repeating the steps S11 to S12 to obtain the corresponding relation among the wind pressure, the weight of the heavy hammer and the density of the pressed powder;
in step S12, the determining of the optimal compact density specifically includes the following steps:
drawing a curve of the density of the pressed powder changing along with the weight of the heavy hammer by taking the weight of the heavy hammer as an abscissa and the density of the pressed powder as an ordinate;
calculating slopes corresponding to the weights on the curve in sequence according to the weight sequence of the heavy punch from small to large, stopping calculation of subsequent slopes when the obtained slope is lower than a preset slope threshold, and acquiring a first weight and a first cake density corresponding to the slope position;
and when the acquired first compact density is not lower than a preset lowest density threshold value, taking the first compact density as the optimal compact density.
2. The dust compactor packing density adjustment method of claim 1, wherein: the weight is composed of a plurality of balancing weights with equal weight, and the weight of the weight can be adjusted by increasing or decreasing the number of the balancing weights.
3. The dust compactor packing density adjustment method of claim 1, wherein: in step S12, when the obtained first compact density is lower than the lowest density threshold, sequentially comparing, in descending order of the weight, the compact densities corresponding to weights larger than the weight of the first weight with the lowest density threshold, and taking the first second compact density not lower than the lowest density threshold as the optimal compact density.
4. The dust compactor packing density adjustment method of claim 1, wherein: in step S12, the preset lowest density threshold refers to: the cake can ensure the lowest density of shape integrity when discharged from the outlet end of the dust compactor.
5. The dust compactor density adjustment method according to claim 1, wherein: in step S12, the preset slope threshold is 0.1 to 0.3.
6. The dust compactor packing density adjustment method of claim 1, wherein: in step S11, the density of the pressed powder is calculated according to the collected mass of the pressed powder and the thickness of the pressed powder.
7. The dust compactor packing density adjustment method of claim 6, wherein: in step S11, the mass of the pressed powder is collected by a weight sensor provided at the bottom of a pressed powder collection pan; the thickness of the pressed powder is collected by a displacement sensor arranged above the pressed powder collecting disc.
8. The method for adjusting the compaction density of the dust compactor according to any one of claims 1 to 7, wherein: the wind pressure is collected by a wind pressure sensor arranged in the pipeline.
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