阅读说明：本技术 一种密相循环分配输送系统 (Dense-phase circulating distribution conveying system ) 是由 沈洁 方建明 冯文龙 于 2021-11-05 设计创作，主要内容包括：本发明适用于循环技术设备改进领域,提供了一种密相循环分配输送系统,包括进料机构,进料机构的输出端连接输送机构的输入端,密相机构的输出端连接输送机构的输入端,输送机构的输出端连接换向机构的输入端,换向机构的输出端连接回流机构的输入端,回流机构的输出端连接进料机构的进料口上,换向机构的第三端置于料罐机构的进料口内,换向机构的控制端、进料机构的控制端及密相机构的控制端分别连接控制器。使用密相输送,物料运动速率低,物料破损率低,输送效率高。设有回流管道,可形成循环输送,管道剩余物料无需二次运输即可回流至料仓。(The invention is suitable for the field of improvement of circulation technical equipment, and provides a dense-phase circulation distribution conveying system which comprises a feeding mechanism, wherein the output end of the feeding mechanism is connected with the input end of a conveying mechanism, the output end of a dense-phase mechanism is connected with the input end of the conveying mechanism, the output end of the conveying mechanism is connected with the input end of a reversing mechanism, the output end of the reversing mechanism is connected with the input end of a backflow mechanism, the output end of the backflow mechanism is connected with a feed inlet of the feeding mechanism, the third end of the reversing mechanism is arranged in a feed inlet of a charging bucket mechanism, and the control end of the reversing mechanism, the control end of the feeding mechanism and the control end of the dense-phase mechanism are respectively connected with a controller. Dense phase conveying is adopted, the material movement rate is low, the material damage rate is low, and the conveying efficiency is high. Be equipped with the backward flow pipeline, can form the circular transport, pipeline surplus material need not the secondary transportation can flow back to the feed bin.)

1. The dense-phase circulating distribution conveying system is characterized by comprising a feeding mechanism, a conveying mechanism, a dense-phase mechanism, a reversing mechanism, a charging bucket mechanism and a backflow mechanism, wherein the output end of the feeding mechanism is connected with the input end of the conveying mechanism, the output end of the dense-phase mechanism is connected with the input end of the conveying mechanism, the output end of the conveying mechanism is connected with the input end of the reversing mechanism, the output end of the reversing mechanism is connected with the input end of the backflow mechanism, the output end of the backflow mechanism is connected with the feeding port of the feeding mechanism, the third end of the reversing mechanism is arranged in the feeding port of the charging bucket mechanism, and the control end of the reversing mechanism, the control end of the feeding mechanism and the control end of the dense-phase mechanism are respectively connected with a controller.

2. The dense phase circulation distribution conveying system of claim 1, wherein the feeding mechanism comprises a feeding pipe, a bin and a rotary valve, one end of the feeding pipe is arranged on a feeding port of the bin, and a discharging port of the bin is connected with a feeding port of the rotary valve.

3. The dense phase circulation distribution conveying system of claim 2, wherein the conveying mechanism comprises a conveying pipe having a feed inlet connected to a discharge outlet of the rotary valve.

4. The system of claim 3, wherein the dense phase mechanism comprises an air compressor and an air control unit ACU, an air outlet of the air compressor is connected to an air inlet of the air control unit ACU, and an air outlet of the air control unit ACU is connected to an air inlet of the conveying pipe.

5. The dense phase circulation distribution conveying system of claim 4, wherein the reversing mechanism comprises a plurality of reversing valves, adjacent two of the reversing valves are connected by a conveying pipe, and the plurality of reversing valves are connected in sequence.

6. The dense phase circulation distribution conveying system of claim 5, wherein the bucket mechanism comprises a plurality of small buckets, and the feed inlet of each small bucket is connected with the third end discharge outlet of one reversing valve.

7. The dense phase circulation distribution conveying system of claim 6, wherein the return mechanism comprises a return pipe, an inlet of the return pipe is connected with a discharge port of the reversing valve at the tail end, and an outlet of the return pipe is arranged on a feed port of the storage bin.

8. The dense phase circulation distribution conveying system of claim 7, wherein the feed mechanism further comprises a dust removal device disposed on the feed inlet of the silo.

9. The dense phase circulation distribution conveying system of claim 8, wherein the dust removal device is a universal dust remover.

Technical Field

The invention belongs to the field of improvement of circulation technical equipment, and particularly relates to a dense-phase circulation distribution conveying system.

Background

Dense phase transport is one of the common methods of pneumatic transport. Dense phase transport moves forward in the pipeline in a plug flow manner and transports in the pipeline in a low speed, high density manner. The dense phase conveying needs small gas flow, but the gas flow pressure drop is large, the movement speed of the particles is low, and the dense phase conveying is suitable for conveying fragile and abrasive materials with short conveying distance.

In dense phase transport systems, pipe plugging is one of the most common and least manageable failures of the system, accounting for approximately over 40% of pneumatic transport system failure rates. Especially, the blockage is more serious at the joint of the horizontal section and the vertical section of the conveying pipeline. In order to prevent pipe blockage during shutdown, the dense-phase conveying system can purge the pipeline by using gas before shutdown, and residual materials in the conveying pipeline are cleaned out of the pipeline.

In a dense-phase conveying system with one pair of multiple systems, if the reversing valve of the front-end charging bucket is changed from a feeding state to a closing state, the residual materials in the pipeline can only enter the rear charging bucket or a specially-arranged waste charging bucket when being purged, and in many application scenes (such as a weighing and proportioning system and a volume proportioning system), the accuracy is reduced, or excessive waste materials are generated or extra transportation is generated.

Disclosure of Invention

The invention aims to provide a dense-phase circulating distribution conveying system, which aims to solve the problems of generating excessive waste or reducing accuracy or generating additional transportation.

The invention is realized in such a way that the dense-phase circulation distribution conveying system comprises a feeding mechanism, a conveying mechanism, a dense-phase mechanism, a reversing mechanism, a charging bucket mechanism and a backflow mechanism, wherein the output end of the feeding mechanism is connected with the input end of the conveying mechanism, the output end of the dense-phase mechanism is connected with the input end of the conveying mechanism, the output end of the conveying mechanism is connected with the input end of the reversing mechanism, the output end of the reversing mechanism is connected with the input end of the backflow mechanism, the output end of the backflow mechanism is connected with the feeding hole of the feeding mechanism, the third end of the reversing mechanism is arranged in the feeding hole of the charging bucket mechanism, and the control end of the reversing mechanism, the control end of the feeding mechanism and the control end of the dense-phase mechanism are respectively connected with a controller.

The further technical scheme of the invention is as follows: feed mechanism includes inlet pipe, feed bin and rotary valve, the one end of inlet pipe is located on the feed inlet of feed bin, the discharge gate of feed bin is connected the feed inlet of rotary valve.

The further technical scheme of the invention is as follows: the conveying mechanism comprises a conveying pipeline, and a feed inlet of the conveying pipeline is connected with a discharge outlet of the rotary valve.

The further technical scheme of the invention is as follows: the dense-phase mechanism comprises an air compressor and an air control unit ACU, an air outlet of the air compressor is connected with an air inlet of the air control unit ACU, and an air outlet of the air control unit ACU is connected with an air inlet of the conveying pipeline.

The further technical scheme of the invention is as follows: the reversing mechanism comprises a plurality of reversing valves, two adjacent reversing valves are connected through a conveying pipeline, and the plurality of reversing valves are sequentially connected.

The further technical scheme of the invention is as follows: the charging bucket mechanism comprises a plurality of small charging buckets, and the feed inlet of each small charging bucket is connected with the third end discharge hole of the reversing valve.

The further technical scheme of the invention is as follows: the backflow mechanism comprises a backflow pipeline, an inlet of the backflow pipeline is connected with the tail end of the discharge port of the reversing valve, and an outlet of the backflow pipeline is arranged on the feed inlet of the storage bin.

The further technical scheme of the invention is as follows: the feeding mechanism further comprises a dust removal device, and the dust removal device is arranged on the feeding hole of the storage bin.

The further technical scheme of the invention is as follows: the dust removal device adopts a universal dust remover.

The invention has the beneficial effects that: dense-phase conveying is adopted, so that the material movement rate is low, the material breakage rate is low, and the conveying efficiency is high; the one-to-many material distribution function is realized, the distribution quantity of the material tanks is not limited, and the material can be fed only by opening the reversing valve at the use end; the air source can be directly closed when the conveying is not carried out, and the air source can be opened when the conveying is needed, so that the energy is saved; be equipped with the backward flow pipeline, can form the circular transport, pipeline surplus material need not the secondary transportation can flow back to the feed bin.

Drawings

Fig. 1 is a schematic structural diagram of a dense phase circulation distribution conveying system provided by an embodiment of the invention.

Detailed Description

Reference numerals: 1-feeding pipe 2-bunker 3-rotary valve 4-conveying pipeline 5-small charging bucket 6-material bolt 7-reversing valve 8-return pipeline 9-air control unit ACU 10-air compressor 11-dust removing device

As shown in fig. 1, the dense-phase circulation distribution conveying system provided by the present invention includes a feeding mechanism, a conveying mechanism, a dense-phase mechanism, a reversing mechanism, a charging bucket mechanism, and a backflow mechanism, wherein an output end of the feeding mechanism is connected to an input end of the conveying mechanism, an output end of the dense-phase mechanism is connected to an input end of the conveying mechanism, an output end of the conveying mechanism is connected to an input end of the reversing mechanism, an output end of the reversing mechanism is connected to an input end of the backflow mechanism, an output end of the backflow mechanism is connected to a feeding port of the feeding mechanism, a third end of the reversing mechanism is disposed in the feeding port of the charging bucket mechanism, and a control end of the reversing mechanism, a control end of the feeding mechanism, and a control end of the dense-phase mechanism are respectively connected to a controller.

Feed mechanism includes inlet pipe 1, feed bin 2 and rotary valve 3, the one end of inlet pipe 1 is located on the feed inlet of feed bin 2, the discharge gate of feed bin 2 is connected the feed inlet of rotary valve 3.

The conveying mechanism comprises a conveying pipeline 4, and a feed inlet of the conveying pipeline 4 is connected with a discharge outlet of the rotary valve 3.

The dense-phase mechanism comprises an air compressor 10 and an air control unit ACU9, wherein an air outlet of the air compressor 10 is connected with an air inlet of the air control unit ACU9, an air outlet of the air control unit ACU9 is connected with an air inlet of the conveying pipeline 4, and the air control unit ACU is of an SAT-ACU-1 type.

The reversing mechanism comprises a plurality of reversing valves 7, two adjacent reversing valves 7 are connected through a conveying pipeline 4, and the plurality of reversing valves 7 are sequentially connected.

The charging bucket mechanism comprises a plurality of small charging buckets 5, and a feed inlet of each small charging bucket 5 is connected with a third end discharge hole of the reversing valve 7.

The return mechanism includes backflow pipeline 8, backflow pipeline 8's access connection is terminal the discharge gate of switching-over valve 7, backflow pipeline 8's export is arranged in on the feed inlet of feed bin.

The feeding mechanism further comprises a dust removal device 11, and the dust removal device 11 is arranged on the feeding hole of the storage bin 2.

The dust removing device 11 adopts a general dust remover.

The dense-phase circulation distribution conveying system consists of a system feeding port, a storage bin, a rotary valve, a dense-phase conveying air source, a conveying pipeline, a plurality of reversing valves, a plurality of small material tanks and a return pipeline, wherein the dense-phase conveying air source can consist of an air compressor and an ACU (air control unit), and a plurality of air supplementing devices can be arranged in the conveying pipeline.

The raw materials are fed into a bin through a system feeding port, and the bin is usually provided with a dust removal system.

After the air source and the rotary valve are opened, the system forms stable dense phase conveying, and if the rear reversing valve is in a closed state, the materials flow into the material bin through the backflow pipeline to form circular conveying. And at the moment, if the small material tank needs the materials, opening the reversing valve, enabling the materials to flow into the material tank immediately, closing the reversing valve after the material quantity meets the requirement, and continuously and circularly conveying the materials.

If all the charging tanks do not need materials, the air source and the rotary valve can be directly closed, and purging pipelines are not needed.

If the transfer needs to be started again, the gas source can be directly opened, the dense phase transfer is recovered, and the rotary valve is opened when appropriate, so that the circulating transfer is recovered. When the conveying is restarted, the air supply device can be matched with a plurality of air supply devices in the conveying pipeline, so that a better effect is achieved.

The system consists of a system feeding port, a storage bin, a rotary valve, a dense phase conveying air source, a conveying pipeline, a plurality of reversing valves, a plurality of small storage tanks and a return pipeline, wherein the dense phase conveying air source can be an air compressor and an ACU (air control unit), a plurality of air supplementing devices can be arranged in the middle of the conveying pipeline, and the system is usually provided with a dust removal system.

The system adopts dense phase conveying, one conveying system is connected with one or more using ends, and the using ends take materials through reversing valves.

The system can close the air source (simultaneously close the rotary valve) at any time when the use end has no use requirement, does not need to purge the conveying pipeline, and can restore the conveying by opening the air source (selecting the machine to open the rotary valve) when the conveying is needed.

The tail end of the conveying pipeline of the system is a return pipeline, and redundant or overshooting materials flow into the material bin through the return pipeline to form circular conveying.

The working principle of the system is as follows: for conveying, on the basis of dense-phase conveying, air supplement is added at a proper position of a pipeline (the effect of matching with the air supplement is better), a conveying system can directly stop supplying air without cleaning a pipe, and the dense-phase conveying can be recovered by supplying air again; the principle that the material is circulated is that the material is circulated back to the storage bin, so that any material tank in the middle can take materials randomly and accurately, the reversing valve is closed immediately after the materials are taken out, and the problem of residual materials in a pipeline is not needed to be worried about.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.