CN106269196A - Convenient regulating type pulverized coal grinding machine air pressure automatic sieving unit - Google Patents
Convenient regulating type pulverized coal grinding machine air pressure automatic sieving unit Download PDFInfo
- Publication number
- CN106269196A CN106269196A CN201610691013.7A CN201610691013A CN106269196A CN 106269196 A CN106269196 A CN 106269196A CN 201610691013 A CN201610691013 A CN 201610691013A CN 106269196 A CN106269196 A CN 106269196A
- Authority
- CN
- China
- Prior art keywords
- coal
- screening device
- coal dust
- tank body
- fines screening
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/18—Adding fluid, other than for crushing or disintegrating by fluid energy
- B02C23/20—Adding fluid, other than for crushing or disintegrating by fluid energy after crushing or disintegrating
- B02C23/22—Adding fluid, other than for crushing or disintegrating by fluid energy after crushing or disintegrating with recirculation of material to crushing or disintegrating zone
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B11/00—Arrangement of accessories in apparatus for separating solids from solids using gas currents
- B07B11/02—Arrangement of air or material conditioning accessories
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Combined Means For Separation Of Solids (AREA)
Abstract
The invention discloses a kind of convenient regulating type pulverized coal grinding machine air pressure automatic sieving unit, be arranged on the coal dust one-level outlet tube outlet on pulverized coal grinding machine top, including coal fines screening device, coal dust input pipe, coal dust outlet tube, coal grain recurrent canal；Coal fines screening device includes that tank body and cover, tank body and cover are connected fastening by bolt, nut；The bottom of coal fines screening device tank body tilts with coal grain recurrent canal junction to coal fines screening device tank body；Coal fines screening device upper end outlet connects with coal dust outlet tube, and lower end is provided with coal dust input pipe；The coal dust input pipe of coal fines screening device is provided with Hand-operated butterfly valve with the coal dust one-level outlet tube junction on grinder top；Further improvement is that: coal fines screening device inner chamber is provided with multistage sub-sieve；The latus rectum of coal dust input pipe is less than the latus rectum of coal dust outlet tube.The present invention can the most arbitrarily regulate air pressure size and the coal dust input quantity of coal fines screening device, meets the screening requirement of coal dust under different operating mode.
Description
Technical field
The present invention relates to coal dust and manufacture field, in particular relate to a kind of coal fines screening device.
Background technology
Small and Medium Enterprises in China produces and concentrated supply of heating in the city boiler is based on coal-burning boiler at present, below 75t/h's
The social recoverable amount about 570,000 of the hot-water boiler of steam boiler and less than 58 megawatts, wherein chain-grate boiler accounts for about 70%,
For improving efficiency of combustion, existing chain-grate boiler is typically equipped with pulverized coal grinding machine, after coal is worn into coal dust, by coal dust input pipe
Coal dust is input in coal fines screening device screening, and during screening, the size of coal dust inlet and air pressure directly influences pulverized coal sieve sub-prime
Amount, it is at the coal dust outlet tube of pulverized coal grinding machine and coal fines screening device that present stage controls the measure of coal dust inlet and air pressure size
Coal dust input pipe between connected by flange assembly, set between the flange of flange assembly adjustment pad partial occlusion pipeline lead to
The method in hole controls, although this method serves certain effect, but pad adjusts very inconvenient, dismantles loaded down with trivial details, coal dust
Inlet and the size of air pressure cannot arbitrarily control.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, propose a kind of can arbitrarily regulate air pressure size, control coal dust input quantity
Convenient regulating type pulverized coal grinding machine air pressure automatic sieving unit.
The present invention is achieved through the following technical solutions technical goal.
Convenient regulating type pulverized coal grinding machine air pressure automatic sieving unit, is arranged on the coal dust one-level outlet tube on pulverized coal grinding machine top
On outlet, including coal fines screening device, coal dust input pipe, coal dust outlet tube, coal grain recurrent canal；Described coal fines screening device includes tank
Body and cover, the upper end of tank body and the lower end of cover are respectively equipped with outward extending annular boss, if annular boss is respectively equipped with
Dry connects tank body and the bolt hole of cover, tank body and cover and is connected fastening by bolt, nut；Described coal fines screening device tank body
Bottom tilts with coal grain recurrent canal junction to coal fines screening device tank body；Described coal fines screening device cover upper end outlet is defeated with coal dust
Going out pipe connection, the bottom of coal fines screening device tank body is provided with coal dust input pipe；It thes improvement is that: the coal of described coal fines screening device
Powder input pipe is provided with Hand-operated butterfly valve with the coal dust one-level outlet tube junction on grinder top.
In said structure, described coal fines screening device inner chamber is provided with multistage sub-sieve.
In said structure, the latus rectum of described coal dust input pipe is less than the latus rectum of coal dust outlet tube.
The present invention compared with prior art, has the positive effect that:
1. butterfly valve has simple in construction, opens and closes rapid, easy to operate, the most laborsaving and good fluid handling properties and cut out
Sealing property.The coal dust input pipe entrance point of coal fines screening device of the present invention and the coal dust one-level outlet tube port of export on grinder top
It is provided with butterfly valve, the opening degree of any regulating butterfly valve, controls air pressure size and the coal dust input quantity of coal fines screening device, meet different work
The screening requirement of coal dust under condition.
2. the latus rectum of coal dust input pipe is more than coal dust less than the latus rectum of coal dust outlet tube, the admission pressure of coal dust input pipe
The outlet pressure of outlet tube so that blown equably in multistage sub-sieve by coal dust input pipe, so that diameter
Less material more easily enters the multistage sub-sieve of next stage, does not results in the phenomenon that material screening is uneven.
3. utilize the gas pressure in grinder to enter sifter and carry out coal fines screening, saved the energy, reduced into
This.
4. this device is enclosed construction, will not produce dust and overflow scattered, not interfere with the working environment of surrounding.
Accompanying drawing explanation
Fig. 1 is present configuration schematic diagram.
Detailed description of the invention
Below according to accompanying drawing and the invention will be further described in conjunction with the embodiments.
The machine air pressure automatic sieving unit of convenient regulating type pulverized coal grinding shown in accompanying drawing, is arranged on the coal dust on pulverized coal grinding machine 1 top
On one-level outlet tube 1.1 outlet, including coal fines screening device 2, coal dust input pipe 3, coal dust outlet tube 6, coal grain recurrent canal 5；Coal
Powder sifter 2 includes tank body 2.1 and cover 2.2, and the upper end of tank body 2.1 and the lower end of cover 2.2 are respectively equipped with outward extending
Annular boss, annular boss is respectively equipped with several and connects tank body 2.1 and the bolt hole of cover 2.2, tank body 2.1 and cover 2.2
Fastening is connected by bolt 2.3, nut 2.4；The bottom of coal fines screening device 2 tank body 2.1 is to coal fines screening device 2 tank body 2.1 and coal grain
Recurrent canal 5 junction tilts；Coal fines screening device cover 2.2 upper end outlet connects with coal dust outlet tube 6, coal fines screening device tank body
The bottom of 2.1 is provided with coal dust input pipe；The coal dust input pipe 3 of coal fines screening device 2 and the coal dust one-level outlet tube on grinder 1 top
1.1 junctions are provided with Hand-operated butterfly valve 4.
Coal fines screening device 2 inner chamber is provided with multistage sub-sieve 2.5.
The latus rectum of coal dust input pipe 3 is less than the latus rectum of coal dust outlet tube 6.
Claims (3)
1. a convenient regulating type pulverized coal grinding machine air pressure automatic sieving unit, is arranged on the coal dust one-level on pulverized coal grinding machine (1) top
On outlet tube (1.1) outlet, including coal fines screening device (2), coal dust input pipe (3), coal dust outlet tube (6), coal grain recurrent canal
(5)；Described coal fines screening device (2) includes tank body (2.1) and cover (2.2), under the upper end of tank body (2.1) and cover (2.2)
End is respectively equipped with outward extending annular boss, and annular boss is respectively equipped with several and connects tank body (2.1) and cover (2.2)
Bolt hole, tank body (2.1) and cover (2.2) are connected fastening by bolt (2.3), nut (2.4)；Described coal fines screening device (2) tank
The bottom of body (2.1) tilts with coal grain recurrent canal (5) junction to coal fines screening device (2) tank body (2.1)；Described coal fines screening device
(2) cover (2.2) upper end outlet connects with coal dust outlet tube (6), and the bottom of coal fines screening device (2) tank body (2.1) is provided with coal dust
Input pipe (3)；It is characterized in that: the coal dust input pipe (3) of described coal fines screening device (2) and the coal dust one on grinder (1) top
Level outlet tube (1.1) junction is provided with Hand-operated butterfly valve (4).
2. according to the convenient regulating type pulverized coal grinding machine air pressure automatic sieving unit described in claims 1, it is characterised in that: described coal
Powder sifter (2) inner chamber is provided with multistage sub-sieve (2.5).
3. according to the convenient regulating type pulverized coal grinding machine air pressure automatic sieving unit described in claims 1, it is characterised in that: described coal
The latus rectum of powder input pipe (3) is less than the latus rectum of coal dust outlet tube (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610691013.7A CN106269196A (en) | 2016-08-20 | 2016-08-20 | Convenient regulating type pulverized coal grinding machine air pressure automatic sieving unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610691013.7A CN106269196A (en) | 2016-08-20 | 2016-08-20 | Convenient regulating type pulverized coal grinding machine air pressure automatic sieving unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106269196A true CN106269196A (en) | 2017-01-04 |
Family
ID=57660522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610691013.7A Pending CN106269196A (en) | 2016-08-20 | 2016-08-20 | Convenient regulating type pulverized coal grinding machine air pressure automatic sieving unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106269196A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106824496A (en) * | 2017-02-21 | 2017-06-13 | 王秋林 | Convenient regulating type pulverized coal grinding machine air pressure automatic sieving unit |
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|---|---|---|---|---|
| CN204079871U (en) * | 2014-07-08 | 2015-01-07 | 赛鼎工程有限公司 | The quick adjustment of a kind of realization, quick-replaceable coke gas flow setting device |
| CN104451006A (en) * | 2014-12-11 | 2015-03-25 | 山东钢铁股份有限公司 | Pea coal pulverizing system and pea coal pulverizing method |
| EP2607828A4 (en) * | 2010-08-18 | 2015-04-22 | Baoshan Iron & Steel | Process and system for calcining fine lime |
| CN105091002A (en) * | 2014-05-23 | 2015-11-25 | 王澎 | Stone coal cinder waste heat recovery system |
| CN205328883U (en) * | 2015-11-27 | 2016-06-22 | 重庆市山丹生物农药有限公司 | Haydite production system is used multipurposely to clear coal gas of environmental protection |
| CN205413312U (en) * | 2015-08-25 | 2016-08-03 | 江苏益众节能设备有限公司 | Superfine coal powder grinding machine |
-
2016
- 2016-08-20 CN CN201610691013.7A patent/CN106269196A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2607828A4 (en) * | 2010-08-18 | 2015-04-22 | Baoshan Iron & Steel | Process and system for calcining fine lime |
| CN105091002A (en) * | 2014-05-23 | 2015-11-25 | 王澎 | Stone coal cinder waste heat recovery system |
| CN204079871U (en) * | 2014-07-08 | 2015-01-07 | 赛鼎工程有限公司 | The quick adjustment of a kind of realization, quick-replaceable coke gas flow setting device |
| CN104451006A (en) * | 2014-12-11 | 2015-03-25 | 山东钢铁股份有限公司 | Pea coal pulverizing system and pea coal pulverizing method |
| CN205413312U (en) * | 2015-08-25 | 2016-08-03 | 江苏益众节能设备有限公司 | Superfine coal powder grinding machine |
| CN205328883U (en) * | 2015-11-27 | 2016-06-22 | 重庆市山丹生物农药有限公司 | Haydite production system is used multipurposely to clear coal gas of environmental protection |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106824496A (en) * | 2017-02-21 | 2017-06-13 | 王秋林 | Convenient regulating type pulverized coal grinding machine air pressure automatic sieving unit |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170104 |
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