Environment-friendly blockage removing device for pneumatic conveying pipeline

Abstract

The utility model discloses a pneumatic conveying pipeline environment-friendly blockage removing device which comprises a pneumatic conveying main pipeline, the pneumatic conveying main pipeline comprises an elbow and a straight pipe section, blockage removing openings are formed in the elbow and the straight pipe section of the pneumatic conveying main pipeline, a two-way valve is arranged on the outer side of each blockage removing opening, and a first port of each two-way valve is connected with the corresponding blockage removing opening through a first connector. And a second port of the two-way valve is connected with the dust removal filter bag through a second joint. When the two-way valve is opened, materials in the blockage removal section of the pneumatic conveying main pipeline can be ejected by air pressure and are collected to the dust removal filter bag, so that particulate matters in the pipeline are prevented from leaking outwards, and a large amount of dust is prevented from being raised; the blockage removing device is low in manufacturing cost, easy and convenient to use, high in efficiency and good in environmental protection property.

Description

Technical Field

[0001] The utility model relates to a pneumatic conveying system, in particular to a blocking removal device for a pneumatic conveying pipeline. Background Art

[0002] Pneumatic conveying is a technology that uses the energy of airflow to transport granular materials in a closed pipe. It is usually divided into positive pressure and negative pressure conveying. When the positive pressure pneumatic conveying system is not running smoothly, the pneumatic conveying main pipeline is often filled with granular materials, especially at elbows and other places with high running resistance, which is prone to blockage and cause failure to operate.

[0003] When the pneumatic conveying pipeline is blocked and there is no accompanying air source connection point on the main conveying pipeline, the blockage cannot be removed section by section through the accompanying air source. The conventional treatment method is to dismantle the pipeline and clean the dust accumulated in the pipeline. The disadvantages of this treatment method are: low efficiency, professional personnel and equipment are required for dismantling the pipeline, which is time-consuming; high pollution, and dust cannot be avoided when cleaning the particulate material in the pipeline during the dismantling process. Summary of the invention

[0004] Purpose of the utility model: The purpose of the utility model is to provide an environmentally friendly unblocking device for pneumatic conveying pipelines, which can prevent particles in the pipeline from leaking out during the unblocking process.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A pneumatic conveying pipeline environmentally friendly blockage removal device comprises a pneumatic conveying main pipeline, the pneumatic conveying main pipeline comprises an elbow and a straight pipe section, a blockage removal port is arranged on the elbow and the straight pipe section of the pneumatic conveying main pipeline, a two-way valve is arranged outside the blockage removal port, a first port of the two-way valve is connected to the blockage removal port through a first joint, and a second port of the two-way valve is connected to a dust removal filter bag through a second joint.

[0007] Furthermore, a plurality of drain ports are arranged at intervals in the straight pipe section of the pneumatic conveying main pipeline.

[0008] Furthermore, the two-way valve is a manual ball valve.

[0009] Furthermore, one end of the first joint is welded and fixed to the drain port, and the other end of the first joint is threadedly matched with the first port of the two-way valve.

[0010] Furthermore, one end of the second joint is threadedly matched with the second port of the two-way valve, the dust filter bag opening is sleeved on the outside of the other end of the second joint, and a binding rope is arranged on the outside of the dust filter bag opening.

[0011] Furthermore, the other end of the second joint is provided with an anti-falling protrusion.

[0012] Beneficial effect: by setting a blockage discharge port on the pneumatic conveying main pipeline, a two-way valve is set on the blockage discharge port, and the valve is equipped with a dust filter bag. When the two-way valve is opened, the material in the blockage discharge section of the pneumatic conveying main pipeline can be pushed open by air pressure and collected in the dust filter bag, thereby avoiding the leakage of particulate matter in the pipeline and causing a large amount of dust. The blockage discharge device has low cost, simple and convenient use, high efficiency and good environmental protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the pneumatic conveying main pipeline structure.

[0014] Figure 2 A schematic diagram of the structure of an environmentally friendly blockage-removing device for a pneumatic conveying pipeline according to the utility model.

[0015] In the figure: 1- elbow; 2- straight pipe section; 3- drain port; 4- two-way valve; 5- first joint; 6- second joint; 7- dust filter bag; 8- tying rope; 9- anti-fall-off protrusion. DETAILED DESCRIPTION

[0016] The present invention will be further explained below in conjunction with the accompanying drawings.

[0017] like Figure 1 and 2 As shown, the utility model is an environmentally friendly unblocking device for a pneumatic conveying pipeline, comprising a pneumatic conveying main pipeline, the pneumatic conveying main pipeline comprising an elbow 1 and a straight pipe section 2, a unblocking port 3 is arranged on the elbow 1 and the pipeline 2 of the pneumatic conveying main pipeline, a two-way valve 4 is arranged outside the unblocking port 3, a first port of the two-way valve 4 is connected to the unblocking port 3 through a first joint 5, and a second port of the two-way valve 4 is connected to a dust filter bag 7 through a second joint 6.

[0018] Since the lengths of the straight pipe sections 2 are different, the longer the pipe, the greater the possibility of blockage, and the greater the workload of post-blockage processing, in this embodiment, in order to improve the rationality and efficiency of blockage removal, multiple blockage removal ports 3 are arranged at intervals on the straight pipe section 2 of the pneumatic conveying main pipeline. When designing the number and position of the blockage removal ports, it is necessary to consider the actual length of the pipeline and the single-stage blockage removal capacity of the gas source pressure, so as to discharge the materials accumulated in the pipeline in sections.

[0019] In this embodiment, the two-way valve 4 is a manual ball valve, the valve model corresponds to the size of the pneumatic conveying main pipeline, the first joint and the second joint are pipe joints, the first end of the first joint 5 is welded and fixed to the drain port 3, and the other end of the first joint 4 is threadedly matched with the first port of the two-way valve 4. One end of the second joint 6 is threadedly matched with the second port of the two-way valve 4, the opening of the dust filter bag 7 is sleeved on the outside of the other end of the second joint 6, and a binding rope 8 is arranged on the outside of the opening of the dust filter bag 7. In order to prevent the dust filter bag 7 from falling off from the second joint 6, an anti-falling protrusion 9 is arranged on the other end of the second joint 6.

[0020] When the pneumatic conveying main pipeline is operating normally, the two-way valve 4 remains closed. When unblocking, the dust filter bag 7 is fixed to the second joint 6 by the binding rope 8, and the two-way valves 4 on the pneumatic conveying main pipeline are opened in sequence starting from the end close to the pneumatic conveying gas source, and the materials accumulated in the pipeline are discharged in sections. The materials in the unblocking section of the pneumatic conveying main pipeline are pushed open by air pressure and collected in the dust filter bag, thereby preventing the particles in the pipeline from leaking out and causing a large amount of dust.

[0021] In order to avoid dust problems caused by loosening the binding mouth of the filter bag during multiple uses, in actual application, the dust removal filter bag 7 can be tied securely first, and then the second joint 6 can be connected to the second port thread of the two-way valve 4. By disassembling and assembling the second joint 6 and the two-way valve 4, the flexible use purpose of one filter bag 7 corresponding to multiple blockage removal points or multiple filter bags 7 corresponding to multiple blockage removal points can be achieved. The threaded disassembly and assembly can better ensure the reliable tightness of the blockage removal device during use. The filter bag is only untied when clearing the material in the filter bag, reducing the possibility of insufficient tightness of the device caused by tying the filter bag.

[0022] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. An environmentally friendly pneumatic conveying pipeline blockage removal device, comprising a pneumatic conveying main pipeline, the pneumatic conveying main pipeline comprising an elbow and a straight pipe section, characterized in that: A drain port is arranged on the elbow and the straight pipe section of the pneumatic conveying main pipeline, and a two-way valve is arranged outside the drain port. The first port of the two-way valve is connected to the drain port through a first joint, and the second port of the two-way valve is connected to the dust removal filter bag through a second joint.

2. The environmentally friendly pneumatic pipeline blockage removal device according to claim 1 is characterized by: The straight pipe section of the pneumatic conveying main pipeline is provided with a plurality of drain ports at intervals.

3. The environmentally friendly pneumatic pipeline blockage removal device according to claim 2 is characterized by: The two-way valve is a manual ball valve.

4. The environmentally friendly pneumatic pipeline blockage removal device according to claim 1 is characterized by: One end of the first joint is welded and fixed to the drain port, and the other end of the first joint is threadedly matched with the first port of the two-way valve.

5. The environmentally friendly pneumatic pipeline blockage removal device according to claim 1 is characterized by: One end of the second joint is threadedly matched with the second port of the two-way valve, the dust filter bag opening is sleeved on the outside of the other end of the second joint, and a binding rope is arranged on the outside of the dust filter bag opening.

6. The environmentally friendly pneumatic pipeline blockage removal device according to claim 5 is characterized by: The other end of the second joint is provided with an anti-falling protrusion.

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