CN213923137U - Pneumatic conveying switching system for switching from single pipe to double sleeves - Google Patents
Pneumatic conveying switching system for switching from single pipe to double sleeves Download PDFInfo
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- CN213923137U CN213923137U CN202022940434.3U CN202022940434U CN213923137U CN 213923137 U CN213923137 U CN 213923137U CN 202022940434 U CN202022940434 U CN 202022940434U CN 213923137 U CN213923137 U CN 213923137U
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Abstract
A pneumatic conveying switching system capable of being switched to a double-sleeve pipe from a single pipe comprises a plurality of original conveying pipelines connected to original blanking points, wherein each original conveying pipeline is provided with a three-way joint, a switching pipeline is led out through the three-way joint, the switching pipelines are combined into a pipeline through a pipeline distributor, the combined pipeline is connected with a gas material mixer, the gas material mixer is connected with an air supplementing device, the outlet of the gas material mixer is connected with the double-sleeve pipe, and the double-sleeve pipe is connected to a new blanking point. The control method comprises the steps of setting double sleeves with corresponding pipe diameters according to the conditions of new blanking points; when the conveying distance is not more than 800m, the pressure gas of the air supplementing device is introduced from the original compressed air system; in the operation process, only one of the original conveying pipelines and the corresponding switching pipeline is opened at the same time. The utility model discloses can enough guarantee former conveying system and carry to former blanking point, can guarantee again that new conveying system carries new blanking point to can make new and old two sets of storage systems each other be reserve.
Description
Technical Field
The utility model belongs to gas-solid two-phase flow carries the field, concretely relates to switch to double cannula's pneumatic conveying switched systems by single tube, is particularly useful for the material and uses when pneumatic conveying destination address needs to change or need newly-increased storage warehouse for granular such as fly ash and grain, cement of thermal power factory or coal fired boiler power station, power plant.
Background
At present, in a plurality of domestic thermal power plants, in order to reach the national standard of zero emission of fly ash, a large steel plate storage warehouse is newly built for storing and comprehensively utilizing the fly ash, or the fly ash is planned to be conveyed to a cement plant with a short distance.
The increase or change of the fly ash delivery destination, the traditional coping method is to build a set of complete pneumatic ash removal delivery system and compressed air system at the original destination (such as under a warehouse), but the cost of land use, design, investment and construction is higher, the construction period is long, and the operation power consumption is greatly increased because of the addition of an air compressor system. For example, a set of pneumatic transmission system with output of 100t/h and transmission distance of 800m is newly added, 3 air compressors are needed, the manufacturing cost is about 120 thousands, and the running power is at least 500 KW. In addition, a drying device, an air storage tank, pneumatic conveying equipment, a matched valve and the like are required to be added.
Therefore, there is a need to develop a reliable, efficient, and energy-saving solution to this problem.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to above-mentioned prior art because the change of carrying the destination causes the unworked problem of original conveying system, provide one kind and switch over to double cannula's pneumatic conveying switched systems by the single tube, can enough guarantee that original conveying system carries the technological requirement to original warehouse, can guarantee again that new conveying system carries the technological requirement of newly-increased destination to can complementary operation, economy is reliable.
In order to achieve the above object, the present invention provides the following technical solutions:
a pneumatic conveying switching system capable of being switched to a double-sleeve pipe through a single pipe comprises a plurality of original conveying pipelines connected to original blanking points, wherein a three-way joint is arranged on each original conveying pipeline, a switching pipeline is led out through the three-way joint, the switching pipelines are combined into a pipeline through a pipeline distributor, the combined pipeline is connected with a gas material mixer, a gas supplementing device is connected onto the gas material mixer, the outlet of the gas material mixer is connected with the double-sleeve pipe, and the double-sleeve pipe is connected to a new blanking point.
Preferably, one output end of the three-way joint is horizontally arranged, the other output end of the three-way joint is vertically arranged, and the switching pipeline is connected to the vertically arranged output end.
Preferably, two output ends of the three-way joint are respectively connected with one pneumatic valve, the two pneumatic valves are locked with each other, and only one pneumatic valve can be opened at the same time.
Preferably, the three-way joint, the pneumatic valve, the pipeline distributor and the gas and material mixer are respectively connected with the pipeline by flanges.
Preferably, the switching pipelines of two adjacent original conveying pipelines are combined into a pipeline through a pipeline distributor; an input end of the pipeline distributor is horizontally arranged, another input end of the pipeline distributor is vertically arranged, and an output end of the pipeline distributor is horizontally arranged, wherein the input end of the vertical arrangement is directly connected with the corresponding switching pipeline, and the input end of the horizontal arrangement is connected with the corresponding switching pipeline through an elbow.
Preferably, the double-sleeve pipe is formed by sleeving an inner layer pipe and an outer layer pipe, and a plurality of notches for circulating compressed air are formed in the inner layer pipe.
Preferably, the average material-gas ratio in the double sleeve is not less than 30 kg/kg; the tail end speed of the double sleeve is 12m/s-14 m/s; the wall thickness of the double-sleeve pipe is not less than 7 mm.
Preferably, the air supplement device comprises a branch pipe connected with a compressed air main pipe, the branch pipe is provided with a main pipeline and a bypass pipe which are connected in parallel, the main pipeline and the bypass pipe are respectively provided with a pneumatic shutoff valve, a throttle orifice plate and a regulating valve, the main pipeline outside the bypass pipe is also provided with a check valve, and the main pipeline and the bypass pipe share the check valve;
the air supplementing device on each air material mixer is independently arranged and is connected with the compressed air main pipe, and the compressed air main pipe is provided with a manual shut-off valve in front of the connecting position of the air supplementing device; and a pressure transmitter is arranged on the double sleeves.
Preferably, the switching pipelines are all led out upwards through three-way joints, the air supplementing devices are all arranged above the air material mixer, and the compressed air main pipe is arranged above all the air supplementing devices; a working platform for maintenance is arranged between the double sleeves and the original conveying pipeline.
The utility model discloses switch to double cannula's pneumatic conveying switched systems's control method by the single tube, include:
setting double sleeves with corresponding pipe diameters according to the conditions of the new blanking points;
when the conveying distance is not more than 800m, the pressure gas of the air supplementing device is introduced from the original compressed air system;
in the operation process, only one of the original conveying pipelines and the corresponding switching pipeline is opened at the same time.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model discloses a pneumatic conveying switched systems can build on original conveying system to the system is built the in-process small investment, and it is fast to take effect, and convenient to use operates steadily, and the work load of maintenance and repair is little, and personnel are prepared fewly, and the running cost is low. The utility model discloses a pneumatic conveying switched systems can enough guarantee that former conveying system carries to the technological requirement of former blanking point, can guarantee again that new conveying system carries the requirement of new blanking point, and the utility model discloses a system can make new and old two sets of storage systems each other be reserve function, provides the assurance for production safety operation.
Drawings
FIG. 1 is a schematic structural view of an embodiment of a pneumatic conveying switching system of the present invention;
in the drawings: 1-a three-way joint; 2-pneumatic valves; 3-bending the pipe; 4-a line distributor; 5-gas material mixer; 6-a gas supplementing device; 7-double cannula; 8-a pressure transmitter; 9-pneumatic shut-off valve; 10-a restriction orifice plate; 11-a regulating valve; 12-a check valve; 13-manual shut-off valve; 14-compressed air main pipe; 15-original conveying pipeline; 16-working platform.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
The utility model discloses switch to double cannula's pneumatic conveying switched systems by single tube, including a plurality of former pipeline 15 that are connected to the former blanking point, all be provided with a three way connection 1 on every former pipeline 15, draw forth the switching pipeline through three way connection 1, three way connection 1's an output level sets up, the vertical setting of another output, the output of switching pipe connection in vertical setting. Two output ends of the three-way joint 1 are respectively connected with one pneumatic valve 2, the two pneumatic valves 2 are mutually locked, and only one pneumatic valve can be opened at the same time. The switching pipelines are combined into a pipeline through a pipeline distributor 4, the combined pipeline is connected with a gas material mixer 5, and in an alternative embodiment, the switching pipelines of two adjacent original conveying pipelines 15 are combined into a pipeline through a pipeline distributor 4. As shown in fig. 1, the example of switching from 6 groups of single tubes to 3 groups of double sleeves will be described. An input end of the pipeline distributor 4 is horizontally arranged, another input end of the pipeline distributor is vertically arranged, and an output end of the pipeline distributor is horizontally arranged, wherein the input end of the vertical arrangement is directly connected with the corresponding switching pipeline, and the input end of the horizontal arrangement is connected with the corresponding switching pipeline through the elbow 3. The air supply device 6 is connected on the air material mixer 5, the outlet of the air material mixer 5 is connected with the double sleeve 7, and the double sleeve 7 is connected to a new blanking point. The double-sleeve 7 is formed by sleeving an inner layer pipeline and an outer layer pipeline, and a plurality of notches are formed in the inner layer pipeline so as to facilitate the circulation of compressed air and achieve the effects of energy conservation, gas conservation and no material blockage. The air supplement device 6 comprises a branch pipe connected with a compressed air main pipe 14, the branch pipe is provided with a main pipeline and a bypass pipe which are connected in parallel, the main pipeline and the bypass pipe are respectively provided with a pneumatic shutoff valve 9, a throttle orifice plate 10 and a regulating valve 11, the main pipeline on the outer side of the bypass pipe is also provided with a check valve 12, and the main pipeline and the bypass pipe share the check valve 12; the air supply device 6 on each air material mixer 5 is independently arranged and is connected with a compressed air main pipe 14, and a manual shut-off valve 13 is arranged in front of the connection position of the air supply device 6 on the compressed air main pipe 14; the double-sleeve 7 is provided with a pressure transmitter 8, and when the double-sleeve 7 runs, the real-time pressure condition can be fed back through the pressure transmitter 8. The three-way joint 1, the pneumatic valve 2, the pipeline distributor 4 and the gas-material mixer 5 are respectively connected with the pipeline by flanges. The switching pipelines are all led out upwards through the three-way joint 1, the air supply devices 6 are all arranged above the air material mixer 5, and the compressed air main pipe 14 is arranged above all the air supply devices 6; the horizontal height difference between the double-casing pipe 7 and the original conveying pipeline 15 is at least 2m, a working platform 16 is arranged in the space between the double-casing pipe 7 and the original conveying pipeline 15, and the working platform 16 is newly built so as to overhaul the switched upper-layer pipeline components.
In the embodiment of the pneumatic conveying and switching system of the utility model, the average material-gas ratio in the double sleeve 7 is not less than 30 kg/kg; the tail end speed of the double sleeve 7 is 12m/s-14 m/s; the pipe wall thickness of the double sleeve 7 is not less than 7 mm.
The utility model discloses a three way connection 1, pneumatic valve 2 and elbow 3 all adopt wear-resisting material to make.
The utility model discloses pneumatic conveying switching system's control method, include:
in the system setting stage, double sleeves 7 with corresponding pipe diameters are set according to the situation of a new blanking point; when the conveying distance is not more than 800m, the pressure gas of the air supply device 6 is introduced from the original compressed air system; an air compressor and a drying device are not required to be additionally arranged;
in the operation process, only one of the original conveying pipelines 15 and the corresponding switching pipeline is opened at the same time.
Compared with the traditional scheme, the utility model discloses pneumatic conveying switched systems investment is few, and it is fast to take effect, convenient to use, operates steadily, and the maintenance work load is little, and personnel's preparation is few, and the running cost is low. The process requirement of conveying the original conveying system to the original warehouse can be met, and the requirement of conveying the new conveying system to a newly added destination can be met. The utility model discloses pneumatic conveying switched systems has two sets of storage systems and each other is reserve function, provides the assurance for production safety operation like this.
The above-mentioned embodiments are only preferred embodiments of the present invention, and it should be understood by those skilled in the art that the technical solution of the present invention can be modified and replaced easily without departing from the spirit and principle of the present invention, and the modified and replaced embodiments also fall within the protection scope of the appended claims.
Claims (9)
1. A pneumatic transmission switching system for switching from a single pipe to a double sleeve is characterized in that:
including former pipeline (15) that a plurality of are connected to former blanking point, all be provided with a three way connection (1) on every former pipeline (15), draw forth the switching pipeline through three way connection (1), a plurality of switching pipelines merge into pipeline all the way through a pipeline distributor (4), pipe connection gas material blender (5) after the combination, gas material blender (5) on connect air supplement unit (6), the exit linkage double cannula (7) of gas material blender (5), double cannula (7) are connected to new blanking point.
2. The pneumatic conveying switching system from single pipe to double pipe according to claim 1, characterized in that: one output end of the three-way joint (1) is horizontally arranged, the other output end of the three-way joint is vertically arranged, and the switching pipeline is connected to the output end of the vertical arrangement.
3. Pneumatic transfer switching system from single pipe to double pipe according to claim 1 or 2, characterized in that: two output ends of the three-way joint (1) are respectively connected with one pneumatic valve (2), the two pneumatic valves (2) are mutually locked, and only one pneumatic valve can be opened at the same time.
4. The pneumatic conveying switching system from single pipe to double pipe according to claim 3, characterized in that: the three-way joint (1), the pneumatic valve (2), the pipeline distributor (4) and the gas-material mixer (5) are respectively connected with the pipeline by flanges.
5. The pneumatic conveying switching system from single pipe to double pipe according to claim 1, characterized in that:
the switching pipelines of two adjacent original conveying pipelines (15) are combined into a pipeline through a pipeline distributor (4); one input end of the pipeline distributor (4) is horizontally arranged, the other input end of the pipeline distributor is vertically arranged, and the output end of the pipeline distributor is horizontally arranged, wherein the input end of the vertical arrangement is directly connected with the corresponding switching pipeline, and the input end of the horizontal arrangement is connected with the corresponding switching pipeline through an elbow (3).
6. The pneumatic conveying switching system from single pipe to double pipe according to claim 1, characterized in that:
the double-sleeve (7) is formed by sleeving an inner layer pipeline and an outer layer pipeline, and a plurality of notches for circulating compressed air are arranged on the inner layer pipeline.
7. The pneumatic conveying switching system from single pipe to double pipe according to claim 1, characterized in that:
the average material-gas ratio in the double sleeve (7) is not less than 30 kg/kg;
the tail end speed of the double sleeve (7) is 12-14 m/s;
the wall thickness of the pipeline of the double sleeve (7) is not less than 7 mm.
8. The pneumatic conveying switching system from single pipe to double pipe according to claim 1, characterized in that:
the air supplement device (6) comprises a branch pipe connected with a compressed air main pipe (14), the branch pipe is provided with a main pipeline and a bypass pipe which are connected in parallel, the main pipeline and the bypass pipe are respectively provided with a pneumatic shutoff valve (9), a throttling orifice plate (10) and a regulating valve (11), the main pipeline outside the bypass pipe is also provided with a check valve (12), and the main pipeline and the bypass pipe share the check valve (12);
the air supply device (6) on each air and material mixer (5) is independently arranged and is connected with a compressed air main pipe (14), and a manual shut-off valve (13) is arranged in front of the connection position of the air supply device (6) on the compressed air main pipe (14);
a pressure transmitter (8) is arranged on the double sleeve (7).
9. The pneumatic conveying switching system from single pipe to double pipe according to claim 1, characterized in that: the switching pipelines are led out upwards through the three-way joint (1), the air supply devices (6) are arranged above the air material mixer (5), and the compressed air main pipe (14) is arranged above all the air supply devices (6); a working platform (16) for overhauling is arranged between the double sleeve (7) and the original conveying pipeline (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022940434.3U CN213923137U (en) | 2020-12-10 | 2020-12-10 | Pneumatic conveying switching system for switching from single pipe to double sleeves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022940434.3U CN213923137U (en) | 2020-12-10 | 2020-12-10 | Pneumatic conveying switching system for switching from single pipe to double sleeves |
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| Publication Number | Publication Date |
|---|---|
| CN213923137U true CN213923137U (en) | 2021-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022940434.3U Active CN213923137U (en) | 2020-12-10 | 2020-12-10 | Pneumatic conveying switching system for switching from single pipe to double sleeves |
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| Country | Link |
|---|---|
| CN (1) | CN213923137U (en) |
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