Recovery device for dust conveying pipeline

Abstract

The utility model provides a recovery device for a dust conveying pipeline, which belongs to the technical field of environmental protection equipment detection and is characterized in that the conveying pipeline is provided with a first valve between an air inlet pipe and a fan, and the other end of the conveying pipeline is provided with a second valve; a back-flushing pipe is arranged at the position, close to the second valve, of the conveying pipeline and used for being communicated with an air source; wherein the powder barrel is provided with an exhaust pipe, and the powder barrel is provided with a filtering structure at the position of the exhaust pipe; when dust in the conveying pipeline is recycled, the first valve and the second valve seal the two ends of the conveying pipeline respectively, the electromagnetic valves of the air inlet pipe and the air outlet pipe are closed, and the electromagnetic valves of the exhaust pipe and the backflushing pipe are opened; air flow is introduced into the powder barrel through the back-flushing pipe, dust in the conveying pipeline can be blown into the powder barrel, then the dust accumulated in the conveying pipeline is reduced, and the dust in the conveying pipeline can be conveniently recycled.

Description

Technical Field

[0001] The utility model belongs to the technical field of environmental protection equipment detection, and in particular relates to a recovery device for a dust conveying pipeline. Background Art

[0002] The particle monitor can monitor the concentration of particles. Before the particle monitor leaves the factory, it is usually necessary to test the particle monitor. In the prior art, a dust generating device generates dust of a preset concentration, and then the dust is transported to the pipeline. The particle monitor to be tested extracts dust samples from the pipeline and calculates the concentration. The operator can determine whether the particle monitor to be tested is qualified by comparing the values ​​of the standard particle monitor and the particle monitor to be tested. After the test, there will be dust on the inner wall of the pipeline, which will cause waste of dust. Utility Model Content

[0003] The embodiment of the utility model provides a recovery device for a dust conveying pipeline, aiming to reduce the waste of dust after the detection is completed.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] Provided is a recovery device for a dust conveying pipeline, comprising a powder barrel and a conveying pipeline, wherein the powder barrel is provided with an air inlet pipe and an air outlet pipe, wherein the air inlet pipe is connected to an air source, and the air outlet pipe is connected to the conveying pipeline; a fan is connected to one end of the conveying pipeline for conveying dust; the conveying pipeline is provided with a first valve between the air inlet pipe and the fan, and a second valve is provided at the other end of the conveying pipeline; the conveying pipeline is provided with a recoil pipe at a position close to the second valve, and the recoil pipe is used to be connected to the air source;

[0006] Among them, the powder barrel is provided with an exhaust pipe, and the powder barrel has a filtering structure at the position of the exhaust pipe to keep the dust in the powder barrel; the air inlet pipe, the air outlet pipe, the exhaust pipe and the recoil pipe are all provided with solenoid valves; when recovering the dust in the conveying pipeline, the first valve and the second valve respectively close the two ends of the conveying pipeline, the solenoid valves of the air inlet pipe and the air outlet pipe are closed, and the solenoid valves of the exhaust pipe and the recoil pipe are opened.

[0007] In a possible implementation, the first valve and the second valve both include:

[0008] The valve plates are rotatably arranged in the delivery pipeline; the valve plates are provided with a rotating shaft, one end of which extends out of the delivery pipeline;

[0009] A power piece is connected to the outer peripheral wall of the conveying pipeline; the rotation driving end of the power piece is connected to the protruding end of the rotating shaft.

[0010] In a possible implementation, the powder barrel has an opening and closing structure therein, and the opening and closing structure is used to separate the powder barrel so that the powder barrel forms a sedimentation chamber and a recovery chamber.

[0011] In a possible implementation, the opening and closing structure includes:

[0012] An opening and closing plate is rotatably arranged in the powder barrel via a rotating shaft;

[0013] The first driving member is connected to the outer side wall of the powder barrel; the rotating shaft of the opening and closing plate extends out of the powder barrel, and the rotating end of the first driving member is connected to the rotating shaft of the opening and closing plate.

[0014] In a possible implementation, the outer peripheral wall of the opening and closing plate has a sealing groove, a sealing ring is provided in the sealing groove, and a portion of the sealing ring protrudes out of the sealing groove.

[0015] In a possible implementation, one side of the powder barrel has a slide groove, and the opening and closing structure includes:

[0016] A slide plate, slidably matched with the slide groove;

[0017] The second driving member is connected to the outer side wall of the powder barrel; the driving end of the second driving member is connected to the outer side end of the slide plate.

[0018] In a possible implementation, the inner side wall of the recovery chamber has a scraper at the position of the slide groove, and the scraper is in contact with the top of the slide plate.

[0019] In a possible implementation, the scraper is made of rubber.

[0020] In a possible implementation, the conveying pipeline is supported by a bracket or hoisted by a hoisting structure.

[0021] The utility model provides a recovery device for a dust conveying pipeline. Compared with the prior art, in normal use, the recoil pipe and the exhaust pipe are both closed, and airflow is introduced into the powder barrel through the air inlet pipe. The airflow can blow up the powder in the powder barrel, and the blown powder can be discharged from the air outlet pipe following the airflow, and finally move into the conveying pipeline. After the detection is completed, the air inlet pipe and the air outlet pipe are closed, the recoil pipe and the exhaust pipe are opened, and the two ends of the conveying pipeline are closed by the first valve and the second valve; at this time, airflow is introduced into the powder barrel through the recoil pipe, and the dust in the conveying pipeline can be blown into the powder barrel, thereby reducing the dust accumulated in the conveying pipeline and facilitating the recovery of the dust in the conveying pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of a recovery device for a dust conveying pipeline provided in an embodiment of the utility model;

[0023] Figure 2 A cross-sectional view of a recovery device for a dust conveying pipeline provided in an embodiment of the utility model;

[0024] Figure 3 A schematic diagram of a slide plate portion of a recovery device for a dust conveying pipeline provided in an embodiment of the utility model.

[0025] Explanation of the accompanying reference numerals: 1. Powder barrel; 11. Air inlet pipe; 12. Air outlet pipe; 13. Exhaust pipe; 14. Sedimentation chamber; 15. Recovery chamber; 16. Chute; 2. Conveying pipeline; 3. First valve; 4. Second valve; 5. Recoil pipe; 6. Opening and closing structure; 61. Opening and closing plate; 62. Slide plate; 63. Scraper; 7. Bracket. DETAILED DESCRIPTION

[0026] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0027] Please also read Figures 1 to 3 Now, a recovery device for dust conveying pipeline provided by the utility model is described. The recovery device for dust conveying pipeline comprises a powder barrel 1 and a conveying pipeline 2. The powder barrel 1 is provided with an air inlet pipe 11 and an air outlet pipe 12. The air inlet pipe 11 is connected to the air source, and the air outlet pipe 12 is connected to the conveying pipeline 2. One end of the conveying pipeline 2 is connected to a fan (not shown in the figure) for conveying dust. The conveying pipeline 2 has a first valve 3 between the air inlet pipe 11 and the fan, and a second valve 4 is provided at the other end of the conveying pipeline 2. The conveying pipeline 2 has a recoil pipe near the second valve 4. 5, the recoil pipe 5 is used to communicate with the air source; wherein, the powder barrel 1 is provided with an exhaust pipe 13, and the powder barrel 1 has a filtering structure at the position of the exhaust pipe 13 to keep the dust in the powder barrel 1; the air inlet pipe 11, the air outlet pipe 12, the exhaust pipe 13 and the recoil pipe 5 are all provided with solenoid valves; when the dust in the conveying pipeline 2 is recovered, the first valve 3 and the second valve 4 respectively close the two ends of the conveying pipeline 2, the solenoid valves of the air inlet pipe 11 and the air outlet pipe 12 are closed, and the solenoid valves of the exhaust pipe 13 and the recoil pipe 5 are opened.

[0028] The utility model provides a recovery device for a dust conveying pipeline 2. Compared with the prior art, in normal use, the recoil pipe 5 and the exhaust pipe 13 are both closed, and airflow is introduced into the powder barrel 1 through the air inlet pipe 11. The airflow can blow up the powder in the powder barrel 1, and the blown-up powder can be discharged from the air outlet pipe 12 following the airflow, and finally move into the conveying pipeline 2. After the detection is completed, the air inlet pipe 11 and the air outlet pipe 12 are closed, the recoil pipe 5 and the exhaust pipe 13 are opened, and the two ends of the conveying pipeline 2 are closed through the first valve 3 and the second valve 4; at this time, airflow is introduced into the powder barrel 1 through the recoil pipe 5, and the dust in the conveying pipeline 2 can be blown into the powder barrel 1, thereby reducing the dust accumulated in the conveying pipeline 2, and facilitating the recovery of the dust in the conveying pipeline 2.

[0029] In some embodiments, Figures 1 to 3 As shown, the first valve 3 and the second valve 4 both include valve plates and power members (not shown in the figure); the valve plates are rotatably arranged in the delivery pipe 2; a rotating shaft is provided on the valve plate, and one end of the rotating shaft extends out of the delivery pipe 2; the power member is connected to the outer peripheral wall of the delivery pipe 2; and the rotating drive end of the power member is connected to the protruding end of the rotating shaft.

[0030] It should be noted that during normal use, that is, when a preset concentration of dust is transported in the conveying pipeline 2, the first valve 3 and the second valve 4 are both in an open state; after use, when the conveying pipeline 2 needs to be backflushed, the first valve 3 and the second valve 4 are in a closed state, so that the backflushing airflow can enter the powder barrel 1, and the powder in the conveying pipeline 2 can be recovered through the powder barrel 1.

[0031] For example, the power member can be a driving motor, the output shaft of which is connected to the rotating shaft of the valve plate; the driving motor can drive the valve plate to open or close the delivery pipeline 2. By arranging the first valve 3 between the air inlet pipe 11 and the fan, dust can be prevented from contacting the fan during recoil.

[0032] In some embodiments, Figures 1 to 3 As shown, the powder barrel 1 has an opening and closing structure 6, which is used to separate the powder barrel 1 so that the powder barrel 1 forms a deposition chamber 14 and a recovery chamber 15. The opening and closing structure 6 includes an opening and closing plate 61 and a first driving member (not shown in the figure); the opening and closing plate 61 is rotatably arranged in the powder barrel 1 through a rotating shaft; the first driving member is connected to the outer wall of the powder barrel 1; the rotating shaft of the opening and closing plate 61 extends out of the powder barrel 1, and the rotating end of the first driving member is connected to the rotating shaft of the opening and closing plate 61.

[0033] It should be noted that the first driving member can be a driving motor. When it is necessary to recover the dust in the conveying pipe 2, the first driving member drives the opening and closing plate 61 to close the powder barrel 1, so that the powder barrel 1 forms a deposition chamber 14 and a recovery chamber 15; the deposition chamber 14 stores the remaining dust in the powder barrel 1, and the recovery chamber 15 is used to receive the dust that is backwashed into the powder barrel 1; the exhaust pipe 13 is connected to the recovery chamber 15. The powder barrel 1 is divided into the deposition chamber 14 and the recovery chamber 15 by the opening and closing plate 61. When the dust in the conveying pipe 2 is recovered, the backwash airflow can be prevented from blowing up the dust in the deposition chamber 14. After the recovery is completed, the opening and closing plate 61 opens the powder barrel 1, and the dust in the recovery chamber 15 can fall into the deposition chamber 14.

[0034] In some embodiments, Figures 1 to 3 As shown, the outer peripheral wall of the opening and closing plate 61 has a sealing groove, a sealing ring is arranged in the sealing groove, and a part of the sealing ring protrudes out of the sealing groove.

[0035] It should be noted that, by providing a sealing ring on the opening and closing plate 61 , when the opening and closing plate 61 closes the powder barrel 1 , the sealing performance between the opening and closing plate 61 and the powder barrel 1 can be improved.

[0036] In some embodiments, Figures 1 to 3 As shown, one side of the powder barrel 1 has a slide groove 16, and the opening and closing structure 6 includes a slide plate 62 and a second driving member (not shown in the figure); the slide plate 62 is slidably matched with the slide groove 16; the second driving member is connected to the outer side wall of the powder barrel 1; the driving end of the second driving member is connected to the outer side end of the slide plate 62.

[0037] It should be noted that the second driving member can be a cylinder, and the piston rod of the cylinder is connected to the outer end of the slide plate 62; the slide plate 62 can slide by the extension and contraction of the cylinder piston rod. The function of the slide plate 62 to close and open the powder barrel 1 is the same as that of the opening and closing plate 61, which will not be repeated here.

[0038] In some embodiments, Figure 1 As shown, the inner wall of the recovery chamber 15 has a scraper 63 at the position of the slide groove 16, and the scraper 63 contacts the top of the slide plate 62. The scraper 63 is made of rubber.

[0039] It should be noted that by arranging a scraper 63 in the powder barrel 1 , after the recovery is completed and the slide plate 62 slides outward, the scraper 63 can scrape off the dust on the top of the slide plate 62 , so that the dust on the top of the slide plate 62 can fall into the deposition chamber 14 .

[0040] In some embodiments, Figures 1 to 3 As shown, the conveying pipeline 2 is supported by a bracket 7 or hoisted by a hoisting structure.

[0041] It should be noted that supporting the conveying pipeline 2 by the bracket 7 can make the conveying pipeline 2 more stable during use; hoisting the conveying pipeline 2 by the hoisting structure can make the positional relationship between the conveying pipeline 2 and the powder barrel 1 relatively fixed, making it easier for the conveying pipeline 2 to transport dust of a preset concentration.

[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A recovery device for a dust conveying pipeline, comprising a powder barrel and a conveying pipeline, wherein the powder barrel is provided with an air inlet pipe and an air outlet pipe, wherein the air inlet pipe is connected to an air source, and the air outlet pipe is connected to the conveying pipeline; a fan is connected to one end of the conveying pipeline for conveying dust; characterized in that: The delivery pipeline has a first valve between the air inlet pipe and the fan, and the other end of the delivery pipeline has a second valve; the delivery pipeline has a recoil pipe near the second valve, and the recoil pipe is used to communicate with the air source; Among them, the powder barrel is provided with an exhaust pipe, and the powder barrel has a filtering structure at the position of the exhaust pipe to keep the dust in the powder barrel; the air inlet pipe, the air outlet pipe, the exhaust pipe and the recoil pipe are all provided with solenoid valves; when recovering the dust in the conveying pipeline, the first valve and the second valve respectively close the two ends of the conveying pipeline, the solenoid valves of the air inlet pipe and the air outlet pipe are closed, and the solenoid valves of the exhaust pipe and the recoil pipe are opened.

2. A recovery device for a dust conveying pipeline as claimed in claim 1, characterized in that: The first valve and the second valve both include: The valve plates are rotatably arranged in the delivery pipeline; the valve plates are provided with a rotating shaft, one end of which extends out of the delivery pipeline; A power piece is connected to the outer peripheral wall of the conveying pipeline; the rotation driving end of the power piece is connected to the protruding end of the rotating shaft.

3. A recovery device for a dust conveying pipeline as claimed in claim 1, characterized in that: The powder barrel has an opening and closing structure therein, and the opening and closing structure is used to separate the powder barrel so that the powder barrel forms a deposition chamber and a recovery chamber.

4. A recovery device for a dust conveying pipeline as claimed in claim 3, characterized in that: The opening and closing structure comprises: An opening and closing plate is rotatably arranged in the powder barrel via a rotating shaft; The first driving member is connected to the outer side wall of the powder barrel; the rotating shaft of the opening and closing plate extends out of the powder barrel, and the rotating end of the first driving member is connected to the rotating shaft of the opening and closing plate.

5. A recovery device for a dust conveying pipeline as claimed in claim 4, characterized in that: The outer peripheral wall of the opening and closing plate is provided with a sealing groove, a sealing ring is provided in the sealing groove, and a part of the sealing ring protrudes out of the sealing groove.

6. A recovery device for a dust conveying pipeline as claimed in claim 3, characterized in that: One side of the powder barrel is provided with a slide groove, and the opening and closing structure comprises: A slide plate, slidably matched with the slide groove; The second driving member is connected to the outer side wall of the powder barrel; the driving end of the second driving member is connected to the outer side end of the slide plate.

7. A recovery device for a dust conveying pipeline as claimed in claim 6, characterized in that: The inner side wall of the recovery chamber is provided with a scraper at the position of the slide groove, and the scraper is in contact with the top of the slide plate.

8. A recovery device for a dust conveying pipeline as claimed in claim 7, characterized in that: The scraper is made of rubber.

9. A recovery device for a dust conveying pipeline as claimed in claim 1, characterized in that: The conveying pipeline is supported by a bracket or hoisted by a hoisting structure.

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