CN214584854U - Automatic sampling system for dry dedusting - Google Patents

Abstract

The utility model discloses an automatic sampling system for dry dedusting, which comprises a sampling box, wherein the sampling box is of a hollow cavity structure, and a sampling air inlet and a sampling air outlet which are communicated with the hollow cavity are arranged on the side wall of the sampling box; the sampling box is internally provided with a driving roller and a feeding roller, the driving roller and the feeding roller are rotatably erected on the side wall of the sampling box, rolled filter cloth is sleeved on the feeding roller, and the driving roller can realize transmission of the filter cloth from the feeding roller to the driving roller under the driving of a driving mechanism. The utility model discloses an automatic sampling system for dry process dust removal can realize replacing artifical sample at the filter cloth sample of the pipeline department of giving vent to anger of dry process dust pelletizing system, and the workman's that has significantly reduced intensity of labour has reduced the sampling result deviation that causes because of workman's subjective factor simultaneously, can accurately judge dry process dust pelletizing system's dust removal situation.

Description

Automatic sampling system for dry dedusting

Technical Field

The utility model belongs to the technical field of dry process dust removal sampling technique and specifically relates to an automatic sampling system for dry process dust removal.

Background

The dust removal effect is often required to be judged in the dry dust removal process, and the existing methods mainly comprise two methods: the first method is a traditional sampling method, wherein a sampling pipeline is arranged at the air outlet end of a dry dust removal system, when sampling is needed, a valve on the sampling pipeline is opened, sampling filter cloth is plugged at the air outlet of the sampling pipeline, sampling is completed after a period of time, sampling dust spots are formed on the sampling filter cloth, and the dust content at the air outlet pipeline is judged according to the color depth of the sampling dust spots. The second is to embed a dust concentration detector on the air outlet pipeline for detecting the dust concentration in the air outlet pipeline.

In the two detection methods, the second detection scheme basically does not need manual participation, the labor intensity of workers can be reduced, but the detection result is easily influenced by temperature, gas flow in the pipeline and the like, the detection result is inaccurate, and the industrial acceptance is low. Most enterprises needing to accurately judge the wind dust concentration at the air outlet pipeline still adopt the first sampling method, but the first sampling method needs workers to climb to the air outlet pipeline to place sampling filter cloth at an air outlet of the sampling pipeline and take the sampling filter cloth down after lasting for a certain time, the working environment of the workers in the whole process is extremely severe, and in the actual sampling process, in order to prevent accidents of the workers, at least two workers are generally required to form a group to take samples, and manpower and material resources are wasted. There is currently no automatic sampling system that replaces the first sampling method.

SUMMERY OF THE UTILITY MODEL

The utility model discloses weak point to exist among the prior art provides a replace artifical dry process automatic sampling system that removes dust.

The purpose of the utility model is realized with the following mode:

an automatic sampling system for dry dedusting comprises a sampling box, wherein the sampling box is of a hollow cavity structure, and a sampling air inlet and a sampling air outlet which are communicated with the hollow cavity are formed in the side wall of the sampling box; the sampling box is internally provided with a driving roller and a feeding roller, the driving roller and the feeding roller are positioned on two sides of the sampling air inlet, the driving roller and the feeding roller are rotatably erected on the side wall of the sampling box, rolled filter cloth is sleeved on the feeding roller, the driving roller pulls the rolled filter cloth from the feeding roller side to the driving roller side under the driving of a driving mechanism, and the transmission of the filter cloth from the feeding roller to the driving roller is realized.

As the utility model discloses technical scheme's an alternative, in the sample box with drive roll parallel arrangement has a tensioning roller, just the tensioning roller rotationally erects on the inside wall of sample box, the filter cloth by the feed roll is walked around the tensioning roller, again by the drive roll pulls the conveying.

As the utility model discloses technical scheme's an alternative, the drive roll top is provided with a supporting beam, be provided with the tight subassembly in top on the supporting beam, be provided with the auxiliary wheel on the tight subassembly in top, the filter cloth presss from both sides tightly the auxiliary wheel with between the drive roll, the auxiliary wheel follows the drive roll rotates, realizes pressing from both sides tightly between the two the conveying of filter cloth.

As an alternative of the technical solution of the present invention, the tightening assembly includes at least two sets of tightening cylinders disposed on the support beam, the cylinder body of the tightening cylinder is detachably disposed on the support beam, the telescopic shaft of the tightening cylinder is connected with the auxiliary wheel through a roller bracket, the auxiliary wheel is rotatably disposed on the roller bracket, and the central line of the auxiliary wheel is parallel to the central line of the driving roller; the cylinder body of the jacking cylinder is fixed on a first connecting plate, the first connecting plate is connected with a second connecting plate through a tensioning bolt, the first connecting plate and the second connecting plate are respectively located on two sides of a supporting beam and are screwed with the tensioning bolt, the first connecting plate and the second connecting plate are tightly clamped on two sides of the supporting beam and then fix the jacking cylinder on the supporting beam and are screwed with the tensioning bolt, and the jacking cylinder can be moved along the supporting beam and then adjusted to the distance between the auxiliary wheels.

As the utility model discloses technical scheme's an alternative, be provided with first baffle and second baffle in the sampling box, first baffle and second baffle will feed room, sampling room and collection room are separated into to the well plenum chamber of sampling box, the feed roller with the tensioning roller sets up in the feed room, the sample air inlet with the sample gas outlet correspondence runs through the sampling room, the drive roll sets up it is indoor to gather, first baffle with still be provided with on the second baffle and be used for the conveying the slot hole of filter cloth, gather indoor the second baffle with still be provided with infrared camera between the drive roll, infrared camera sets up the roof and the orientation of gathering the room the filter cloth sets up.

As an alternative of the technical scheme of the utility model, the infrared camera also comprises a terminal display screen, and the infrared camera is in communication connection with the terminal display screen; the system also comprises a control system, wherein the control system comprises a storage module and an analysis module; the control system is in communication connection with the infrared camera; the alarm system is electrically connected with the control system; the storage module of the control system is internally provided with a gray threshold used for judging the pollution degree of the filter cloth, the analysis module is used for analyzing the gray of the filter cloth collected by the infrared camera, and when the gray exceeds the gray threshold, the alarm system gives an alarm.

As an alternative of the technical proposal of the utility model, the filter cloth is also sprayed with a mark number.

As the utility model discloses technical scheme's an alternative, actuating mechanism is servo motor, servo motor's output shaft with the drive roll is connected and is used for the drive roll rotates.

As an alternative of the technical scheme of the utility model, a cloth swinging mechanism for folding the filter cloth after sampling is finished is further arranged on one side of the driving roller away from the second partition plate; the cloth swinging mechanism comprises a first gear arranged on an output shaft of the servo motor, the first gear is further meshed with a second gear, the second gear is rotatably arranged in the collecting chamber and faces one side of the filter cloth, a connecting shaft is fixedly arranged on the connecting shaft, a swing rod is arranged on the connecting shaft through a connecting rod mechanism, and when the servo motor rotates, the second gear drives the swing rod to swing through the connecting rod mechanism, so that the filter cloth is folded at the position where the driving roller hangs down.

As an alternative of the technical scheme of the utility model, a sampling pipeline arranged at the gas outlet pipeline of the dry dedusting system extends into the sampling gas inlet, and the sampling pipeline extends into the upper part of the filter cloth from the sampling gas inlet; the sampling air outlet is communicated with the air outlet pipeline through a first air pipe; a second air pipe for communicating the sampling pipeline and the first air pipe is also arranged between the sampling pipeline and the first air pipe; a first electric ball valve is arranged on the sampling pipeline between the air inlet of the second air pipe and the sampling box; a second electric ball valve is arranged on the second air pipe; and a third electric ball valve is arranged on the air outlet pipeline between the air inlet of the sampling pipeline and the air outlet of the first air pipe.

The utility model has the advantages that:

the utility model discloses an automatic sampling system for dry process dust removal can realize replacing artifical sample at the filter cloth sample of the pipeline department of giving vent to anger of dry process dust pelletizing system, and the workman's that has significantly reduced intensity of labour has reduced the sample result deviation that causes because of workman's subjective factor simultaneously, can accurately judge dry process dust pelletizing system's dust removal situation, makes adaptability intervention.

In addition, the sampling result can be monitored in real time, the sampling result is automatically judged, the automatic alarm of the abnormal result is realized, and the intelligence of the sampling system is improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor.

Fig. 1 is a schematic diagram of an embodiment of the present invention applied to a dry dedusting system of an automatic sampling system.

Fig. 2 is a schematic diagram of an automatic sampling system according to an embodiment of the present invention.

Fig. 3 is a right side view of an automatic sampling system in an embodiment of the present invention.

Fig. 4 is a schematic view at a section a-a in fig. 3.

Fig. 5 is a front view of an automatic sampling system in an embodiment of the present invention.

Fig. 6 is a schematic view at section B-B in fig. 5.

Fig. 7 is a partial enlarged view at C in fig. 6.

Fig. 8 is a schematic structural diagram of the interior of the sampling box of the automatic sampling system according to the embodiment of the present invention.

Fig. 9 is a partial enlarged view of fig. 8 at D.

Fig. 10 is a control schematic diagram in an embodiment of the present invention.

Reference numerals:

100-a sampling box; 101-sample air inlet; 102-sample gas outlet; 103-a first separator; 104-a second separator; 1041-long hole; 105-a supply chamber; 106-a sampling chamber; 107-collection chamber; 111-drive roll; 112-a supply roll; 113-filter cloth; 1131-mark number; 114-a drive mechanism; 115-tension roller; 116-a support beam; 117-planetary reducer; 120-a tightening assembly; 121-auxiliary wheels; 122-a jacking cylinder; 123-roller support; 124-a first connection plate; 125-tie bolts; 126-a second connecting plate; 130-a cloth swinging mechanism; 131-a first gear; 132-a second gear; 133-a connecting shaft; 134-linkage mechanism; 135-swing rod; 200-a dry dedusting system; 210-an outlet duct; 220-a sampling pipe; 230-first trachea 240-second trachea; 250-a first motorized ball valve; 260-a second motorized ball valve; 270-a third motorized ball valve; 300-sampling dust spots; 400-an infrared camera; 500-terminal display screen; 600-a control system; 610-a storage module; 620-an analysis module; 700-alarm system.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In the description of the embodiments, the terms "disposed," "connected," and the like are to be construed broadly unless otherwise explicitly specified or limited. For example, the connection can be fixed, detachable or integrated; can be mechanically or electrically connected; either directly or through an intervening medium, or through internal communication between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In this document, taking the application of the sampling system in a bag-type dust removal system as an example, it can be understood that the sampling system described in this document is also applicable to other dry dust removal systems.

As shown in fig. 2 to 4, the utility model discloses an automatic sampling system for dry dedusting, which comprises a sampling box 100, wherein the sampling box 100 is a hollow chamber structure, and a sampling air inlet 101 and a sampling air outlet 102 which are communicated with the hollow chamber are arranged on the side wall of the sampling box 100; the sampling box is internally provided with a driving roller 111 and a feeding roller 112, the driving roller 111 and the feeding roller 112 are positioned at two sides of the sampling air inlet 101, the driving roller 111 and the feeding roller 112 are rotatably erected on the side wall of the sampling box 100, the feeding roller 112 is sleeved with a rolled filter cloth 113, the driving roller 111 is driven by a driving mechanism 114 to pull the rolled filter cloth 113 from the feeding roller 112 side to the driving roller 111 side, and the transmission of the filter cloth 113 from the feeding roller 112 to the driving roller 111 is realized.

In the actual use process, as shown in fig. 1, a sampling pipe 220 arranged at the outlet pipe 210 of the dry dedusting system 200 extends into the sampling air inlet 101, and the sampling pipe 220 extends from the sampling air inlet 101 to the upper part of the filter cloth 113; the sampling gas outlet 101 is communicated with a gas outlet pipeline 210 through a first gas pipe 230; a second air pipe 240 for communicating the sampling pipeline 220 and the first air pipe 230 is also arranged between the sampling pipeline 220 and the first air pipe 230; a first electric ball valve 250 is arranged between the air inlet of the second air pipe 240 and the sampling box 100 on the sampling pipeline 220; the second air pipe 240 is provided with a second electric ball valve 260; a third electric ball valve 270 is arranged on the gas outlet pipeline 210 between the gas inlet of the sampling pipeline 220 and the gas outlet of the first gas pipe 230.

Under the normal condition, first electronic ball valve 250 and the closure of second electronic ball valve 260, third electronic ball valve 270 is opened, the gas after the dust removal of dry dedusting system 200 gets into next process via pipeline 210 of giving vent to anger, when the dust content of gas in pipeline 210 of giving vent to anger needs to be detected, open second electronic ball valve 260 earlier, close third solenoid valve 270, make gas get into the pipeline of giving vent to anger via sampling pipeline 220 and second trachea 240 earlier, wash out remaining gas in the sampling pipeline, avoid sampling error.

Subsequently, the second electric ball valve 260 is closed, the first electric ball valve 250 is opened, and the gas enters the sampling box 100 through the sampling pipe 220, impinges on the filter cloth between the supply roll 112 and the drive roll 111, and completes sampling after a prescribed time. The sampling dust spots 300 are left on the filter cloth, and the dust removal effect of the dry dust removal system 200 can be visually judged according to the color depth of the sampling dust spots 300. If a plurality of times of sampling is needed, the driving roller 111 pulls the filter cloth to be transmitted to the driving roller 111 from the feeding roller 112 under the driving of the driving mechanism 114, the driving mechanism 114 can select intermittent driving according to actual needs, and after a single sampling is completed, the filter cloth 113 is transmitted to the driving roller 111 for a certain distance, so that the filter cloth corresponding to the sampling air inlet 101 is clean and pollution-free filter cloth, and the sampling can be performed again.

After sampling is completed, the first electric ball valve 250 is closed, and the third electric ball valve 270 is opened, so that the sampling pipeline 220 is closed, and gas enters the subsequent process from the gas outlet pipeline 210 again. The filter cloth with dust is wound around the drive roll 111.

It can be understood that, in order to facilitate placing a new roll of filter cloth 113 on the feeding roller 112 and to facilitate detaching the filter cloth after sampling from the driving roller 111 for observing the dust content, the corresponding side wall of the sampling box 100 is a detachable side wall, and those skilled in the art can design the side wall of the sampling box 100 for applicability according to actual requirements, and therefore, the detailed description is omitted here.

The scheme can replace the traditional manual sampling, only needs to replace a new filter cloth roll periodically, greatly reduces the labor intensity of workers, simultaneously reduces the sampling result deviation caused by subjective factors of the workers, can accurately judge the dust removal condition of the dry dust removal system, and performs adaptive intervention. For example, for a bag-type dust removal system, when the filter cloth has more dust after sampling, the color of the sampled dust spot 300 is darker, which indicates that the dust removal effect is not good, and may be caused by the saturation of dust on the dust removal filter bag, at this time, an electromagnetic pulse valve on the bag-type dust removal system needs to be controlled to perform back blowing on the dust removal filter bag. If the dust removal effect after the back flushing still cannot meet the requirement, the dust removal filter bag may be damaged and needs to be replaced.

In the above technical solution, the filter cloth is directly conveyed to the driving roller 111 driven by the driving mechanism 114 by the feeding roller 112, and in order to ensure the accuracy of the sampling result during the sampling process, the filter cloth 113 is preferably directly adhered to the air outlet of the sampling pipe 220, so in this embodiment, as shown in fig. 4 again, a tension roller 115 is disposed in the sampling box 100 in parallel with the driving roller 111, the tension roller 115 is rotatably erected on the inner sidewall of the sampling box 100, and the filter cloth 113 is drawn and conveyed by the driving roller 111 after bypassing the tension roller 115 by the feeding roller 112. Therefore, the filter cloth 113 between the tension roller 115 and the driving roller 111 can be kept in a horizontal state all the time, and can be conveniently attached to the air outlet of the sampling pipeline 220, and the sampling accuracy is improved.

In the above technical solution, the sampled filter cloth 113 may be wound around the driving roller 111, and the filter cloth may be conveyed from the feeding roller 112 to the driving roller 111 by the driving mechanism 114, but in this solution, there may be mutual contamination between the sampled dust spots 300 on the filter cloth 113 caused by the filter cloth 113 being wound tightly around the driving roller 111 after sampling, which affects the accuracy of the sampling result. In the scheme, as shown in fig. 4 and 9, a supporting beam 116 is arranged above the driving roller 111, a jacking assembly 120 is arranged on the supporting beam 116, an auxiliary wheel 121 is arranged on the jacking assembly 120, the filter cloth 113 is clamped between the auxiliary wheel 121 and the driving roller 111, and the auxiliary wheel 121 rotates along with the driving roller 111 to realize the transmission of the filter cloth 113 after sampling, which is clamped between the auxiliary wheel 121 and the driving roller 111. In this scheme, the filter cloth 113 after the sample need not to twine on drive roll 111, can only fall on the diapire of sampling box 100 under the effect of gravity after hanging down from drive roll 111, can understand, in order to go down the filter cloth 113 after the sample is accomplished, can set the diapire of sampling box to detachable, and the design of adaptability can be made to technical staff in the field under the guidance of this scheme.

As a specific solution of the above technical solutions, as shown in fig. 8 and 9, the tightening assembly 120 includes at least two sets of tightening cylinders 122 disposed on the support beam 116, a cylinder body of the tightening cylinder 122 is detachably disposed on the support beam 116, an extension shaft of the tightening cylinder is connected with an auxiliary wheel 121 through a roller bracket 123, the auxiliary wheel 121 is rotatably disposed on the roller bracket 123, and a center line of the auxiliary wheel 121 is parallel to a center line of the driving roller 111; under the drive of the jacking cylinder 122, the auxiliary wheel 121 and the driving roller 111 can clamp the filter cloth 113 between the two and realize transmission under the drive of the driving mechanism 114, so that the phenomenon that the filter cloth 113 slips in the transmission process due to insufficient clamping force is prevented.

The connection mode of the jacking cylinder 122 and the support beam 116 is that the cylinder body of the jacking cylinder 122 is fixed on a first connection plate 124, the first connection plate 124 is connected with a second connection plate 126 through a tension bolt 125, the first connection plate 124 and the second connection plate 126 are respectively located on two sides of the support beam 116, the tension bolt 125 is screwed, the first connection plate 124 and the second connection plate 126 are clamped on two sides of the support beam 116 so as to fix the jacking cylinder 122 on the support beam 116, the tension bolt 125 is screwed, the jacking cylinder 122 can move along the support beam 116 so as to adjust the distance between the auxiliary wheels 121, and the distance between the auxiliary wheels 121 is suitable for avoiding the sampling dust spots 300 on the filter cloth 113.

In the above technical solution, the filter cloth 113 after sampling is accumulated on the bottom wall of the sampling box 100, the observation filter cloth 113 can be taken down at intervals to observe the state of the sampling dust spot 300, and the sampling time of each sampling dust spot 300 can be judged only according to the replacing time of the filter cloth roll and the driving frequency of the driving mechanism 114; and the gas overflowing from the gap between the sampling pipe 220 and the filter cloth 113 during sampling easily pollutes the non-sampled filter cloth on the feeding roller 112, and also easily causes secondary pollution to the sampled dust spot 300 after sampling. In the scheme, as shown in fig. 3 to 7, a first partition plate 103 and a second partition plate 104 are arranged in the sampling box 100, the hollow chamber of the sampling box 100 is divided into a feeding chamber 105, a sampling chamber 106 and a collecting chamber 107 by the first partition plate 103 and the second partition plate 104, the feeding roller 112 and the tension roller 115 are arranged in the feeding chamber 105, the sampling air inlet 101 and the sampling air outlet 102 correspondingly penetrate through the sampling chamber 106, the driving roller 111 is arranged in the collecting chamber 107, long holes 1041 for conveying filter cloth are further arranged on the first partition plate 103 and the second partition plate 104, the air outlet of the sampling pipeline 220 is isolated in the sampling chamber 106 by the arrangement of the first partition plate 103 and the second partition plate 104, so that pollution to the non-sampling filter cloth 113 in the feeding chamber 105 is avoided, pollution to the filter cloth 113 after sampling in the collecting chamber 107 by gas can also be prevented, and the stability of sampling results is further ensured.

In addition, an infrared camera 400 is further disposed between the second barrier 104 and the driving roller 111 in the collecting chamber 107, and the infrared camera 400 is disposed at a top wall of the collecting chamber 107 and is disposed toward the filter cloth 113. The infrared camera 400 can photograph the sampled dust spots 300 on the filter cloth after sampling is completed, and the sampling time of each sampled dust spot 300 is recorded.

In addition, in order to obtain a sample result in time and realize real-time monitoring of the dust removal effect of the dry dust removal system 200, as shown in fig. 10, the automatic sampling system further includes a terminal display screen 500, and the infrared camera 400 is in communication connection with the terminal display screen 500; the sampling result that infrared camera 400 gathered is shown in real time on terminal display screen 500, and terminal display screen 500 can set up in the central control room, and the staff can observe infrared camera's the result of gathering in real time.

The system further comprises a control system 600, wherein the control system 600 comprises a storage module 610 and an analysis module 620; the control system 600 is in communication connection with the infrared camera 400; a gray level threshold value for judging the pollution degree of the filter cloth is arranged in the storage module 610 of the control system 600, and the analysis module 620 is used for analyzing the gray level of the filter cloth collected by the infrared camera 400; an alarm system 700, the alarm system 700 being electrically connected to the control system 600; the alarm system 700 issues an alarm when the gray level exceeds a gray level threshold. Reminding the staff to pay attention to, the staff can make adaptive intervention according to the result that infrared camera 400 gathered, for example, blow back the dust removal filter bag, or judge whether need change the dust removal filter bag.

In the scheme, the gas in the gas outlet pipeline 210 of the dry dedusting system 200 can be automatically sampled and the sampling result can be monitored in real time, the sampling result can be automatically judged, the abnormal result can be automatically alarmed, and the labor intensity of workers is greatly reduced.

It can be understood that, in order to further realize the intelligent control of the automatic sampling system, as shown in fig. 10 again, the control system 600 is electrically connected to the first electric ball valve 250, the second electric ball valve 260, and the third electric ball valve 270, and can perform the intelligent control on the whole sampling process.

The infrared camera 400 is arranged to collect and observe the sampling result in real time, in which case the filter cloth 113 after the sampling is completed can be used as a "bottom" for comparing the sampling result when necessary. In order to correspond the sampling dust spots 300 collected by the infrared camera 400 to the sampling dust spots on the filter cloth 113, the filter cloth 113 is intermittently sprayed with index numbers 1131, so that each index number 1131 corresponds to one sampling dust spot 300. During subsequent comparison, the sampling dust spot 300 on the corresponding filter cloth can be searched according to the mark number 1131 corresponding to the sampling dust spot 300 collected on the infrared camera 400.

According to the above description, the driving mechanism 114 may be configured to intermittently drive the filter cloth 113, in this embodiment, as a specific structure, the driving mechanism 114 is a servo motor, and an output shaft of the servo motor 114 is connected to the drive roller 111 for driving the drive roller 111 to rotate.

In addition, in the above solution, the filter cloth 113 after sampling is stacked on the bottom wall of the sampling box 100 in disorder, which is inconvenient in the process of removing the filter cloth, in the solution, as shown in fig. 8, a cloth placing mechanism 130 for folding the filter cloth 113 after sampling is further disposed on one side of the driving roller 111 away from the second partition plate 104; the cloth swinging mechanism 130 comprises a first gear 131 arranged on an output shaft of the servo motor, the first gear 131 is further engaged with a second gear 132, the second gear 132 is rotatably arranged in the collection chamber 107, a connecting shaft 133 is fixedly arranged on one side of the second gear 132 facing the filter cloth 113, the connecting shaft 133 is provided with a swing rod 135 through a connecting rod mechanism 134, when the servo motor rotates, the second gear 132 drives the swing rod 135 to swing through the connecting rod mechanism 134, and therefore the filter cloth 113 hanging down from the driving roller 111 is folded, and the filter cloth is conveniently taken away subsequently.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention. In addition, the technical solutions between the various embodiments can be combined with each other, but must be based on the realization of those skilled in the art; when the technical solutions are contradictory or cannot be combined, the combination of the technical solutions should be considered to be absent, and is not within the protection scope of the present invention.

Claims (10)

1. An automatic sampling system for dry dedusting is characterized by comprising a sampling box, wherein the sampling box is of a hollow cavity structure, and a sampling air inlet and a sampling air outlet which are communicated with the hollow cavity are arranged on the side wall of the sampling box;

the sampling box is internally provided with a driving roller and a feeding roller, the driving roller and the feeding roller are positioned on two sides of the sampling air inlet, the driving roller and the feeding roller are rotatably erected on the side wall of the sampling box, rolled filter cloth is sleeved on the feeding roller, the driving roller pulls the rolled filter cloth from the feeding roller side to the driving roller side under the driving of a driving mechanism, and the transmission of the filter cloth from the feeding roller to the driving roller is realized.

2. The automatic sampling system for dry dedusting according to claim 1, wherein a tension roller is arranged in the sampling box in parallel with the driving roller, the tension roller is rotatably erected on the inner side wall of the sampling box, and the filter cloth is wound around the tension roller by the feeding roller and is pulled and conveyed by the driving roller.

3. The automatic sampling system for dry dedusting according to claim 1, wherein a supporting beam is arranged above the driving roller, a jacking assembly is arranged on the supporting beam, an auxiliary wheel is arranged on the jacking assembly, the filter cloth is clamped between the auxiliary wheel and the driving roller, and the auxiliary wheel rotates along with the driving roller to realize the transmission of the filter cloth clamped between the auxiliary wheel and the driving roller.

4. The automatic sampling system for dry dedusting according to claim 3, wherein the jacking assembly comprises at least two sets of jacking cylinders arranged on the supporting beam, the cylinder bodies of the jacking cylinders are detachably arranged on the supporting beam, the telescopic shafts of the jacking cylinders are connected with the auxiliary wheels through roller brackets, the auxiliary wheels are rotatably arranged on the roller brackets, and the center lines of the auxiliary wheels are parallel to the center line of the driving roller;

the cylinder body of the jacking cylinder is fixed on a first connecting plate, the first connecting plate is connected with a second connecting plate through a tensioning bolt, the first connecting plate and the second connecting plate are respectively located on two sides of a supporting beam and are screwed with the tensioning bolt, the first connecting plate and the second connecting plate are tightly clamped on two sides of the supporting beam and then fix the jacking cylinder on the supporting beam and are screwed with the tensioning bolt, and the jacking cylinder can be moved along the supporting beam and then adjusted to the distance between the auxiliary wheels.

5. The automatic sampling system for dry dedusting according to claim 2, wherein a first partition plate and a second partition plate are arranged in the sampling box, the first partition plate and the second partition plate divide the hollow cavity of the sampling box into a feeding chamber, a sampling chamber and a collecting chamber, the feeding roller and the tensioning roller are arranged in the feeding chamber, the sampling air inlet and the sampling air outlet correspondingly penetrate through the sampling chamber, the driving roller is arranged in the collecting chamber, the first partition plate and the second partition plate are further provided with a long hole for conveying the filter cloth, the collecting chamber is further provided with an infrared camera, and the infrared camera is arranged on the top wall of the collecting chamber and faces towards the filter cloth.

6. The automatic sampling system for dry dedusting according to claim 5, further comprising a terminal display screen, wherein the infrared camera is in communication connection with the terminal display screen;

the system also comprises a control system, wherein the control system comprises a storage module and an analysis module;

the control system is in communication connection with the infrared camera;

the alarm system is electrically connected with the control system;

the storage module of the control system is internally provided with a gray threshold used for judging the pollution degree of the filter cloth, the analysis module is used for analyzing the gray of the filter cloth collected by the infrared camera, and when the gray exceeds the gray threshold, the alarm system gives an alarm.

7. The automatic sampling system for dry dedusting of claim 6, wherein the filter cloth is further printed with a mark number.

8. The automatic sampling system for dry dedusting according to claim 5, wherein the driving mechanism is a servo motor, and an output shaft of the servo motor is connected with the driving roller for driving the driving roller to rotate.

9. The automatic sampling system for dry dedusting according to claim 8, wherein a cloth swinging mechanism for folding the filter cloth after sampling is finished is further arranged on one side of the driving roller away from the second partition plate;

the cloth swinging mechanism comprises a first gear arranged on an output shaft of the servo motor, the first gear is further meshed with a second gear, the second gear is rotatably arranged in the collecting chamber and faces one side of the filter cloth, a connecting shaft is fixedly arranged on the connecting shaft, a swing rod is arranged on the connecting shaft through a connecting rod mechanism, and when the servo motor rotates, the second gear drives the swing rod to swing through the connecting rod mechanism, so that the filter cloth is folded at the position where the driving roller hangs down.

10. The automatic sampling system for dry dedusting according to any one of claims 1 to 9, wherein a sampling pipeline arranged at an air outlet pipeline of the dry dedusting system extends into the sampling air inlet, and the sampling pipeline extends from the sampling air inlet to the upper part of the filter cloth;

the sampling air outlet is communicated with the air outlet pipeline through a first air pipe;

a second air pipe for communicating the sampling pipeline and the first air pipe is also arranged between the sampling pipeline and the first air pipe;

a first electric ball valve is arranged on the sampling pipeline between the air inlet of the second air pipe and the sampling box;

a second electric ball valve is arranged on the second air pipe;

and a third electric ball valve is arranged on the air outlet pipeline between the air inlet of the sampling pipeline and the air outlet of the first air pipe.

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