CN202494126U - Pneumatic electromechanical combined type pulverized coal storage and supply system in front of furnace - Google Patents
Pneumatic electromechanical combined type pulverized coal storage and supply system in front of furnace Download PDFInfo
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- CN202494126U CN202494126U CN2012200546712U CN201220054671U CN202494126U CN 202494126 U CN202494126 U CN 202494126U CN 2012200546712 U CN2012200546712 U CN 2012200546712U CN 201220054671 U CN201220054671 U CN 201220054671U CN 202494126 U CN202494126 U CN 202494126U
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Abstract
The utility model discloses a pneumatic electromechanical combined type pulverized coal storage and supply system in front of a furnace, and the system comprises hoisting equipment, a dust collector (2), an air compressor (4) and a floor-type tank body (1), wherein a powder fluidizer (3) is arranged inside the floor-type tank body (1), and the floor-type tank body (1) is butted with the feeding hole of a powder tank in front of the furnace through a power conveying pipe (5). The pulverized coal storage and supply system in front of the furnace has the advantages of safety, reliability, simplicity and convenience in operation, and capability of preventing secondary pollution of the powder, thereby being applicable to the technical field of the pneumatic transportation of the powder.
Description
Technical field
The utility model belongs to powder Pneumatic Conveying Technology field, relates to a kind of coal dust and stores the confession system, and particularly a kind of strength electromechanical combined Stokehole pulverized coal is store the confession system.
Background technology
" chamber combustion " mode of Industrial Boiler, kiln employing coal dust has bigger advantage than " chamber combustion " mode of traditional " grate firing " mode and water-coal-slurry, and its efficiency of combustion is high, and boiler efficiency is high, is convenient to combustion process and controls automatically.One of problem is " efficient industrial pulverized-coal fired boiler and a key technology " in the Eleventh Five-Year Plan national science and technology supporting plan key project that require to be provided with according to National Program for Medium-to Long-term Scientific and Technological Development in October, 2006.This problem is born by coal academy of sciences Beijing Coal Chemical Industry branch, has passed through assessment of result in January, 2007, has carried out engineering demonstration and commercialization in a big way thereafter and has applied.The coal dust preparation system of industrial coal powder boiler can take specialty to concentrate two kinds of patterns of the self-supporting powder process of powder process and stokehold, and its centralized system powder flow path is as shown in Figure 1, the stokehold flour mill flow is as shown in Figure 2.Capacity should take specialty to concentrate the pattern of powder process less than the small-sized pulverized-coal fired boiler of 20t/h or 14MW.In recent years, the impetus that small-sized pulverized-coal fired boiler is applied strengthened year by year, but in concrete operation, coal dust some difficult problems occurred from the centralized system powder base to pulverized-coal fired boiler user's delivery process.One of which, if adopt the special-purpose tank car of coal dust to transport coal dust, its scope of application has received the restriction of transportation radius; Generally should not be above 150 kilometers; Its two, if adopt general wagon to transport packed coal dust, though broken through the restriction of transportation radius; But after packed coal dust is sent to the user; How at the scene every bag of coal dust of 1 ton of weighing is risen to the top of the high-order powder jar in stokehold and fills tank filling, how to prevent that packed coal dust Kaifeng discharging from filling the secondary pollution that dust from flying caused in the tank filling process, then become a new difficult problem.Therefore, be the market demand that cooperates small-sized pulverized-coal fired boiler to apply, urgent need is developed a kind of safe and reliable, easy and simple to handle, can effectively prevent the Stokehole pulverized coal storage confession system of dust secondary pollution.
At present, take specialty to concentrate powder process, the user transported supply the operation mode of powder to have following three kinds then:
1. adopt the special-purpose tank car of coal dust to transport the coal dust pattern, the tank car volume is 30m
3～40m
3. after tank car arrives at the user, dock, adopt mode that strength carries that the coal dust in the tank car is delivered among the powder jar then through the charging aperture of special purpose interface with stokehold powder jar.This pattern, because tank car is special-purpose, can only the empty wagons return; If transportation radius is excessive, certainly will strengthens cost of transportation, thereby strengthen the fuel cost of boiler operatiopn; In addition, because coal dust tank car vehicle size is bigger, need roomy transport channel, small-sized pulverized-coal fired boiler user's boiler room periphery often can not meet this requirement.The application of this pattern has received the restriction of transportation radius and transport channel.
2. the pattern that adopts common vehicle to transport packed coal dust, every bag of about 1 ton of weight, gross deadweight is 20t～40t.After vehicle arrives at the user, how the ton bag is discharged to the stockyard and deposits, how about coal dust in the bag is risen to from ground up to the stokehold powder jar about 15m～20m, ton bag weight is big, and the work high above the ground difficulty is big, operational security is required high.
3. adopt coal dust dispensing terminal pattern; A coal dust dispensing terminal is built in the suitable place that Here it is in several small-sized pulverized-coal fired boiler users adopt coal dust tank car transportation radius scope; Possess the storehouse that suitable capacity is arranged in standing, after packed coal dust adopts common vehicle to deliver to terminal unloading temporary, then according to each user's needs; Coal dust in ton bag Kaifeng is filled in the tank car, and the user is sent in transhipment again.This pattern, coal dust ton bag several times loads and unloads, and freight and miscellaneous charges strengthens, when ton bag Kaifeng fills into tank car, dust from flying, secondary pollution is serious, and especially the place of terminal is difficult to look for, even if found, also can not meet the desirable requirement of tank car transportation radius.
The utility model content
The purpose of the utility model is to overcome above-mentioned technological deficiency, provides a kind of safe and reliable, easy and simple to handle, can effectively prevent the strength electromechanical combined Stokehole pulverized coal storage confession system of dust secondary pollution.This system merges loading and unloading, storage, the confession powder link of packed coal dust with one, and system's floor space is little, and operation is easy; The system integration advanced technologies such as existing mechanical lifting, dedusting, powder fluidization, strength conveying, equipment investment is few; System is in service, has reduced repeatedly loading and unloading transhipment link of ton bag, has practiced thrift the shipment surcharge; System's operation has realized mechanization, electrification and has effectively controlled the dust secondary pollution, has both alleviated operation personnel's labour intensity, has improved the environmental sanitation condition of workplace again.The utility model technology will create good conditions for the application that advances small-sized pulverized-coal fired boiler.
Its technical scheme is:
A kind of strength electromechanical combined Stokehole pulverized coal is store the confession system, comprises hanging device, dust-precipitator, air compressor machine, the tank body that lands, and the tank body that lands is built-in with the powder fluidization device, and the tank body that lands docks with the charging aperture of stokehold powder jar through duff pipe.
Said hanging device is made up of pillar, guide rail and electric block.
Compared with prior art, the beneficial effect of the utility model is:
1. the technical scheme of the utility model can be applying of small-sized pulverized-coal fired boiler a kind of desirable concentrated powder process, the operation mode that dispensing supplies powder is provided, and has solved limited, the limited bottleneck of boiler user stokehold transport channel of the special-purpose tank car transportation radius of coal dust.
2. the described strength electromechanical combined of the utility model Stokehole pulverized coal storage confession system has reduced the repeatedly loading and unloading transhipment link in the coal dust dispensing supply process; Reduce coal dust transportation and surcharge thereof; Reduce pulverized-coal fired boiler operation fuel cost, raising project operation economic benefit.
3. this system has realized that the on-the-spot packed coal dust loading and unloading of small-sized pulverized-coal fired boiler user, storage, feed merge the multifunction system of one; Operation is easy, safe and reliable; The confession powder is quick, has alleviated operation personnel's labour intensity greatly, raises labour efficiency.
4. use the utility model strength electromechanical combined Stokehole pulverized coal storage confession system, can effectively control the dust from flying of Stokehole pulverized coal storage confession process, prevent boiler room generation secondary pollution, greatly improve boiler room environmental sanitation situation, realize cleaner production.
Description of drawings
Fig. 1 is that industrial coal powder boiler powder process preparation system specialty is concentrated powder process model process figure in the background technology;
Fig. 2 is the self-supporting powder process model process in industrial coal powder boiler powder process preparation system stokehold figure in the background technology;
Fig. 3 is the structural representation of the utility model strength electromechanical combined Stokehole pulverized coal storage confession system.
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment the utility model is done explanation in further detail.
With reference to Fig. 3, a kind of strength electromechanical combined Stokehole pulverized coal is store the confession system, comprises hanging device, dust-precipitator 2, air compressor machine 4, the tank body 1 that lands, and the tank body 1 that lands is built-in with powder fluidization device 3, and the tank body 1 that lands docks with the charging aperture of stokehold powder jar through duff pipe 5.
Said hanging device is made up of pillar 6, guide rail 7 and electric block 8.
Packed coal dust transportation is arrived at afterwards to be unloaded to lift to storehouse by hanging device and is stacked.According to pulverized-coal fired boiler operation needs, can be regularly or at any time ton bag 9 is sling to landing the charging door of tank body top, start dust-precipitator 2, coal dust is filled into landing tank body.So repeat to lift the material level that fills until landing in the tank body and reach certain position, close the valve on charging door and the duff pipe 5 then, start air compressor machine 4; The gas that lands in the tank body is boosted; Powder fluidization when landing tank body pressure when reaching certain value, is opened the valve on the duff pipe immediately; Just the interior coal dust that is filled of the tank body that will land is all delivered in the powder jar of stokehold fast, has accomplished and has once supplied the powder process.
The said system of the utility model can be used for the design of 4t/h～20t/h series pulverized-coal fired boiler user's Stokehole pulverized coal storage confession system.
The utility model strength electromechanical combined Stokehole pulverized coal storage confession system has the structure performance:
1. the tank body that lands adopts bearing structure, and design pressure is 0.4MPa (gauge pressure);
2. the hoisting weight of hanging device is 1.5t, and sling height is 4.5m;
3. the horizontal range of coal dust conveying is 200m, and hoisting depth is 20m;
4. the speed of coal dust conveying reaches 1t/min;
5. the storage capability that fills volume and storehouse of tank body of landing is decided with boiler capacity size;
The pressure head of air compressor machine and air quantity with the height of stokehold powder jar and and the storehouse distance of landing between the tank body decide.
The above; Be merely the preferable specific embodiment of the utility model; The protection domain of the utility model is not limited thereto; Any technical staff who is familiar with the present technique field is in the technical scope that the utility model discloses, and the simple change of the technical scheme that obtains or equivalence replacement all fall in the protection domain of the utility model with may be obvious that.
Claims (2)
1. a strength electromechanical combined Stokehole pulverized coal is store the confession system; It is characterized in that; Comprise hanging device, dust-precipitator (2), air compressor machine (4), the tank body (1) that lands, the tank body (1) that lands is built-in with powder fluidization device (3), and the tank body (1) that lands docks with the charging aperture of stokehold powder jar through duff pipe (5).
2. strength electromechanical combined Stokehole pulverized coal according to claim 1 is store the confession system, it is characterized in that said hanging device is made up of pillar (6), guide rail (7) and electric block (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200546712U CN202494126U (en) | 2012-02-21 | 2012-02-21 | Pneumatic electromechanical combined type pulverized coal storage and supply system in front of furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200546712U CN202494126U (en) | 2012-02-21 | 2012-02-21 | Pneumatic electromechanical combined type pulverized coal storage and supply system in front of furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202494126U true CN202494126U (en) | 2012-10-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200546712U Expired - Fee Related CN202494126U (en) | 2012-02-21 | 2012-02-21 | Pneumatic electromechanical combined type pulverized coal storage and supply system in front of furnace |
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| Country | Link |
|---|---|
| CN (1) | CN202494126U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114259903A (en) * | 2020-09-15 | 2022-04-01 | 国家能源投资集团有限责任公司 | Feeding assembly and pulping device |
-
2012
- 2012-02-21 CN CN2012200546712U patent/CN202494126U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114259903A (en) * | 2020-09-15 | 2022-04-01 | 国家能源投资集团有限责任公司 | Feeding assembly and pulping device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Shengjili Science & Technology Co., Ltd., Shaanxi Document name: Notification of Termination of Patent Right |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121017 Termination date: 20160221 |