CN208560956U - A kind of equipment of powder material Dense Phase Pneumatic Conveying - Google Patents
A kind of equipment of powder material Dense Phase Pneumatic Conveying Download PDFInfo
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- CN208560956U CN208560956U CN201820911302.8U CN201820911302U CN208560956U CN 208560956 U CN208560956 U CN 208560956U CN 201820911302 U CN201820911302 U CN 201820911302U CN 208560956 U CN208560956 U CN 208560956U
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Abstract
The utility model discloses a kind of equipment of powder material Dense Phase Pneumatic Conveying.The equipment includes material issuance tank, material delivery pipe road and stock distributor；Wherein, the bottom of material issuance tank is equipped at least one cone bucket for discharging, and the cone of cone bucket is equipped with the first air-breather, and the apex of cone bucket is provided with the discharge port being connected with material delivery pipe road；Wherein, material delivery pipe curb material conveying direction is successively arranged material stop valve, the second air-breather, mass flow regulating valve and mass flow of materials meter；Wherein, one end of stock distributor is equipped with a material inlet and is connected with the end on material delivery pipe road, the other end of stock distributor is equipped at least one material outlet, and each material outlet is connected by a branch with the burner of gasification furnace, and the branch road is provided with resistance elements.The powder material Dense Phase Pneumatic Conveying device structure of the utility model is simple, easy to maintain, and investment operation and maintenance is at low cost, and it is more simple, reliable to operate operation.
Description
Technical field
The utility model relates to a kind of equipment of powder material Dense Phase Pneumatic Conveying.
Background technique
In dry coal powder airflow bed Coal Gasification Technology technique, coal dust is admitted to by way of Dense Phase Pneumatic Conveying through burner
Gasification furnace carries out gasification reaction.In existing dry coal powder airflow bed coal-gasification commercial plant, Dense Phase Pneumatic Conveying of Pulverized Coal system
It is all made of the scheme that a coal dust pipeline corresponds to a burner corresponding to a burner or a plurality of coal dust pipeline, to meet every
The pulverized coal flow controllable precise of coal dust pipeline.
Powder material Dense Phase Pneumatic Conveying equipment is disadvantageous in that at present: investment, operation and maintenance cost are excessively high, grasp
Make operation is complicated, the repair time is long etc..Generally, in order to ensure the oxygen coal of each burner is more controllable than parameter, each coal dust is defeated
Sending pipeline is independent operation, i.e., setting one coal dust stop valve, pulverized coal flow regulating valve, two are both needed on each pipeline
The a series of instrument, valve such as a coal power flowmeter, a coal dust triple valve, multiple pressure sensors, multiple gas control valves.
Moreover, corresponding to coal dust feed-line number, corresponding material issuance tank is also required to multiple discharges, causes material issuance jar structure multiple
It is miscellaneous, manufacturing cost is higher.
In addition, for the multi nozzle of gasification furnace of small-scale, if each nozzle be correspondingly arranged it is a set of from material issuance tank to
The coal dust feed-line of gasification furnace, pipeline conveying capacity is small, then due to the adherency of powder, agglomeration, is not only easy to cause flow tune
Valve plug plug is saved, and is difficult to realize two-phase transportation, flow is extremely difficult to stable, controllable state.
Utility model content
The technical problem to be solved by the utility model is to overcome powder material Dense Phase Pneumatic Conveying in the prior art
The defects of jar structure of equipment is complicated, manufacturing cost is high, operation and maintenance cost are high, complicated for operation, the repair time is long, provides
A kind of equipment of powder material Dense Phase Pneumatic Conveying.The powder material Dense Phase Pneumatic Conveying device structure of the utility model is simple,
Easy to maintain, investment operation and maintenance is at low cost, and operation operation is more simple, reliable, improves stability and controllability.
The utility model is to solve above-mentioned technical problem by following technical proposals.
The utility model provides a kind of equipment of powder material Dense Phase Pneumatic Conveying comprising material issuance tank, material conveying
Pipeline and stock distributor；
Wherein, the bottom of the material issuance tank is equipped at least one cone bucket for discharging, and the cone of the cone bucket is equipped with
First air-breather, the apex of the cone bucket are provided with the discharge port being connected with the material delivery pipe road；
Wherein, the material delivery pipe curb material conveying direction is successively arranged material stop valve, the second air-breather, object
Stream adjustable valve and mass flow of materials meter；
Wherein, one end of the stock distributor is equipped with a material inlet and is connected with the end on the material delivery pipe road,
The other end of the stock distributor is equipped at least one material outlet, and each material outlet passes through a branch and gasification furnace
Burner be connected, branch road is provided with resistance elements.
In the utility model, the number of the cone bucket is preferably 1-3.
In the utility model, preferably, the material delivery pipe road is additionally provided with several pressure sensors, generally, institute
Stating pressure sensor can be used for the pressure distribution situation of real-time monitoring feed-line, for example, second air-breather with it is described
First pressure sensor is provided between mass flow regulating valve.
In the utility model, as known to those skilled in the art, in order to reduce or avoid the influence of gravity, the material matter
Amount flowmeter is preferably installed to the vertical section of pipeline.
In the utility model, preferably, being provided with one or three between the mass flow of materials meter and the stock distributor
Material can entered gasification furnace and not enter between gasification furnace two kinds by port valve by triple valve as known to those skilled in the art
State switches over.
Wherein, preferably, the length of pipe between the triple valve and the stock distributor is straight not less than 10 times of pipelines
Diameter.
Wherein, preferably, second pressure sensor is provided between the triple valve and the stock distributor, to described
The distance between second pressure sensor and the stock distributor do not do particular determination, as long as can reach the monitoring material point
The purpose of orchestration state.
In the utility model, as known to those skilled in the art, in order to reduce or avoid the influence of gravity, the material point
Orchestration is preferably installed to the vertical section of pipeline.
In the utility model, preferably, being equipped at the material inlet of the stock distributor for the first regulation carrier gas
Three-way device, to it is described first control carrier gas as known to those skilled in the art, the regulation carrier gas refer to can by input gas come
Regulate and control coal dust conveying speed in pipeline.
In the utility model, the stock distributor is preferably provided with 2-4 material outlet, and the branch is preferably
2-4 item；As known to those skilled in the art, the setting of every branch is answered identical, in order to control and adjust.
It, as known to those skilled in the art, can be right by the resistance performance value of the monitoring resistance elements in the utility model
Coal dust is judged and is adjusted with performance in each branch, to promote the effect evenly distributed.
In the utility model, the resistance elements are resistance elements commonly used in the art, such as the resistance elements
It can be tapered diffuser, orifice plate, regulating valve etc..
In the utility model, preferably, the material of the resistance elements is ceramics, it is possible to reduce powder material is to described group
The friction of power component is conducive to the conveying of powder material.
In the utility model, particular determination is not done to the length of the branch, can be set according to the actual situation.
In the utility model, preferably, the branch is additionally provided with several pressure sensors, for example, the material outlet
Place is provided with third pressure sensor；The 4th pressure sensor is provided between the resistance elements and the end of the branch.
Wherein, it is carried preferably, being provided between the third pressure sensor and the resistance elements for the second regulation
The three-way device of gas, with for regulating and controlling the drag uniform between each branch, to guarantee the mass flow distribution between each branch
It is almost the same.
Wherein, preferably, being provided with object between the three-way device and the resistance elements that regulate and control carrier gas for described second
Whether material on-line monitoring equipment, the mass flow to monitor branch evenly distribute.
In the utility model, using above equipment carry out powder material Dense Phase Pneumatic Conveying method the following steps are included:
Powder material enters material delivery pipe road by the discharge port of cone bucket through the first air-breather from material issuance tank, successively passes through
Material stop valve, the second air-breather, mass flow regulating valve and mass flow of materials meter enter stock distributor, after through propping up
Road enters gasification furnace.
In the utility model, the powder material is the powder material of this field routine, such as coal dust etc.；Art technology
Personnel know that the powder material needs to be dried before transporting.
In the utility model, as known to those skilled in the art, in actual use, in the material delivery pipe road
Gas velocity can be adjusted according to the powder material type conveyed, for example, the material is defeated when the powder material is coal dust
It send the gas velocity in pipeline to be preferably 2-20m/s, is more preferably 5-12m/s, be further more preferably 8-10m/s.
In the utility model, as known to those skilled in the art, in actual use, in the material delivery pipe road
Powder concentration can be adjusted according to the powder material type conveyed, for example, when the powder material is coal dust, the object
Powder concentration in material conveying tube road is preferably 50-500kg/m3, it is more preferably 80-300kg/m3, further more preferably it is
100-200kg/m3。
In the utility model, as known to those skilled in the art, in actual use, the material issuance tank and the gasification
The pressure difference of furnace can be adjusted according to the powder material type conveyed, for example, when the powder material is coal dust, the hair
The pressure difference of batch can and the gasification furnace is preferably 0.1-1.2MPa, is more preferably 0.3-0.8MPa, is further more preferably
0.6MPa。
On the basis of common knowledge of the art, above-mentioned each optimum condition, can any combination to get the utility model respectively compared with
Good example.
The utility model agents useful for same and raw material are commercially available.
The positive effect of the utility model is:
The powder material Dense Phase Pneumatic Conveying device structure of the utility model is simple, easy to maintain, invests operation and maintenance
It is at low cost, and it is more simple, reliable to operate operation.
Detailed description of the invention
Fig. 1 is the powder material Dense Phase Pneumatic Conveying equipment in the utility model embodiment 1.
Appended drawing reference is as follows:
Material issuance tank 1
Cone bucket 2
First air-breather 3
Material stop valve 4
Second air-breather 5
Mass flow regulating valve 6
Mass flow of materials meter 7
Stock distributor 8
Branch 9
First pressure sensor 10
Triple valve 11
Second pressure sensor 12
The three-way device 13 of first regulation carrier gas
Resistance elements 14
Third pressure sensor 15
4th pressure sensor 16
The three-way device 17 of second regulation carrier gas
Equipment 18 is monitored online in material
Specific embodiment
The utility model is further illustrated below by the mode of embodiment, but is not therefore limited in the utility model
Among the embodiment described range.In the following examples, the experimental methods for specific conditions are not specified, according to conventional methods and conditions,
Or it is selected according to product manual.
Embodiment 1
The equipment of powder material Dense Phase Pneumatic Conveying as shown in Figure 1 (wherein completely depicts a material delivery pipe
Road and a branch, remaining material delivery pipe road is same as shown in Figure 1, remaining branch is same as shown in Figure 1.) comprising
Material issuance tank 1, material delivery pipe road and stock distributor 8；
Wherein, the bottom of material issuance tank 1 is equipped with 2 cone buckets 2 for discharging, and the cone of cone bucket 2 is equipped with the first ventilation dress
3 are set, the apex of cone bucket 2 is provided with the discharge port being connected with material delivery pipe road；
Wherein, material delivery pipe curb material conveying direction is successively arranged material stop valve 4, the second air-breather 5, material
Flow control valve 6 and mass flow of materials meter 7；
Wherein, one end of stock distributor 8 is equipped with a material inlet and is connected with the end on material delivery pipe road, material distribution
The other end of device 8 is equipped at least one material outlet, and each material outlet is connected by a branch 9 with the burner of gasification furnace, props up
Resistance elements 14 are provided on road 9.
First pressure sensor 10 is provided between second air-breather 5 and mass flow regulating valve 6.
A triple valve 11 is provided between mass flow of materials meter 7 and the stock distributor 8.
Length of pipe between triple valve 11 and stock distributor 8 is 10 times of pipe diameters.
Second pressure sensor 12 is provided between triple valve 11 and stock distributor 8.
The three-way device 13 for the first regulation carrier gas is equipped at the material inlet of stock distributor 8, for regulating and controlling pipeline
Interior coal dust conveying speed.
Stock distributor 8 is provided with 2 material outlets, and branch 9 is 2.
Every branch 9 is provided with a resistance elements 14, to promote the effect evenly distributed.
Resistance elements 14 are tapered diffuser.
Every branch 9 is also set up there are two pressure sensor, is provided with third pressure sensor 15 at material outlet；Resistance
The 4th pressure sensor 16 is provided between component 14 and the end of branch 9.
Between third pressure sensor 15 and resistance elements 14 be equipped with for second regulation carrier gas three-way device 17, with
In regulating and controlling the drag uniform between each branch, to guarantee that the mass flow distribution between each branch is almost the same.
Material on-line monitoring equipment 18 is provided between three-way device 17 and resistance elements 14 for the second regulation carrier gas,
Whether the mass flow to monitor branch evenly distributes.
The step of powder material Dense Phase Pneumatic Conveying is carried out using above equipment are as follows:
Dry coal dust enters material delivery pipe road by the discharge port of cone bucket 2 through the first air-breather 3 from material issuance tank 1, according to
It is secondary to enter material distribution by material stop valve 4, the second air-breather 5, mass flow regulating valve 6 and mass flow of materials meter 7
Device 8, after through branch 9 enter gasification furnace.
In the present embodiment, the gas velocity in material delivery pipe road is 8-10m/s.
In the present embodiment, the powder concentration in material delivery pipe road is 150-200kg/m3。
In the present embodiment, the pressure difference of material issuance tank 1 and gasification furnace is 0.6MPa.
The powder material conveying equipment of the utility model overcome well distribution is uneven, oxygen coal than it is out of control the problems such as,
It realizes every branch to evenly distribute, reduces blocking and risk of instability, and then relatively easily realize two-phase transportation and controllable
Stable state.
Although the foregoing describe specific embodiment of the present utility model, it will be appreciated by those of skill in the art that
This is merely illustrative of, and the protection scope of the utility model is defined by the appended claims.Those skilled in the art
Under the premise of without departing substantially from the principles of the present invention and essence, many changes and modifications may be made,
But these change and modification each fall within the protection scope of the utility model.
Claims (10)
1. a kind of equipment of powder material Dense Phase Pneumatic Conveying, which is characterized in that it includes material issuance tank, material delivery pipe road and object
Expect distributor；
Wherein, the bottom of the material issuance tank is equipped at least one cone bucket for discharging, and the cone of the cone bucket is equipped with first
Air-breather, the apex of the cone bucket are provided with the discharge port being connected with the material delivery pipe road；
Wherein, the material delivery pipe curb material conveying direction is successively arranged material stop valve, the second air-breather, material stream
Adjustable valve and mass flow of materials meter；
Wherein, one end of the stock distributor is equipped with a material inlet and is connected with the end on the material delivery pipe road, described
The other end of stock distributor is equipped at least one material outlet, and each material outlet passes through the burning of a branch and gasification furnace
Mouth is connected, and the branch road is provided with resistance elements.
2. equipment as described in claim 1, which is characterized in that the number of the cone bucket is 1-3.
3. equipment as described in claim 1, which is characterized in that second air-breather and the mass flow regulating valve it
Between be provided with first pressure sensor；
The mass flow of materials meter is installed on the vertical section of pipeline.
4. equipment as described in claim 1, which is characterized in that between the mass flow of materials meter and the stock distributor
It is provided with a triple valve；
The stock distributor is installed on the vertical section of pipeline.
5. equipment as claimed in claim 4, which is characterized in that the pipeline between the triple valve and the stock distributor is long
Degree is not less than 10 times of pipe diameters；
Second pressure sensor is provided between the triple valve and the stock distributor.
6. equipment as described in claim 1, which is characterized in that be equipped at the material inlet of the stock distributor and be used for first
Regulate and control the three-way device of carrier gas；
The stock distributor is provided with 2-4 material outlet, and the branch is preferably 2-4 item.
7. equipment as described in claim 1, which is characterized in that the resistance elements are tapered diffuser, orifice plate or regulating valve.
8. equipment as described in claim 1, which is characterized in that be provided with third pressure sensor at the material outlet；
The 4th pressure sensor is provided between the resistance elements and the end of the branch.
9. equipment as claimed in claim 8, which is characterized in that set between the third pressure sensor and the resistance elements
It is equipped with the three-way device for the second regulation carrier gas.
10. equipment as claimed in claim 9, which is characterized in that for the second regulation three-way device of carrier gas and described
Material on-line monitoring equipment is provided between resistance elements.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820911302.8U CN208560956U (en) | 2018-06-13 | 2018-06-13 | A kind of equipment of powder material Dense Phase Pneumatic Conveying |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820911302.8U CN208560956U (en) | 2018-06-13 | 2018-06-13 | A kind of equipment of powder material Dense Phase Pneumatic Conveying |
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| CN208560956U true CN208560956U (en) | 2019-03-01 |
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| Application Number | Title | Priority Date | Filing Date |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108545483A (en) * | 2018-06-13 | 2018-09-18 | 华东理工大学 | A kind of device and method of powder material Dense Phase Pneumatic Conveying |
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2018
- 2018-06-13 CN CN201820911302.8U patent/CN208560956U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108545483A (en) * | 2018-06-13 | 2018-09-18 | 华东理工大学 | A kind of device and method of powder material Dense Phase Pneumatic Conveying |
| CN108545483B (en) * | 2018-06-13 | 2024-02-27 | 华东理工大学 | Dense-phase pneumatic conveying equipment and method for powder materials |
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