CN202973144U - Combined coal dust storage and supply device - Google Patents
Combined coal dust storage and supply device Download PDFInfo
- Publication number
- CN202973144U CN202973144U CN 201220657150 CN201220657150U CN202973144U CN 202973144 U CN202973144 U CN 202973144U CN 201220657150 CN201220657150 CN 201220657150 CN 201220657150 U CN201220657150 U CN 201220657150U CN 202973144 U CN202973144 U CN 202973144U
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- storage
- tank
- supply device
- dust storage
- powder tank
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Abstract
The utility model relates to a combined coal dust storage and supply device. The combined coal dust storage and supply device is characterized by comprising a dust storage tank; a bag-type dust remover is arranged in the top of the internal part of the dust storage tank; the side wall of the upper part of the dust storage tank is provided with a high level meter; the side wall of the lower part of the dust storage tank is provided with a low level meter; a plurality of temperature sensors are arranged between the high level meter and the low level meter; the lower part of the dust storage tank is divided into two conical bins; both the bottoms of the two conical bins are provided with a pneumatic fluidizing device and an electric blanking rotary valve; the feed ports of two weighing tanks are respectively connected with a discharge port of one conical bin of the dust storage tank correspondingly; the side walls of the two weighing tanks are suspended on a group of weighing sensors which are fixedly arranged on an operation platform; the bottoms of the two weighing tanks are provided with agitating devices; a pressure balance pipe is arranged between the two weighing tanks and the dust storage tank; both feeders comprise feed spirals arranged below the bottoms of the weighing tanks; a primary fan with a manual air valve is arranged below the feed spirals; and a coal dust feeding pipe is communicated with the internal top of the dust storage tank.
Description
Technical field
The utility model relates to a kind of coal powder storage and supply device, particularly about a kind of combined coal powder storage and supply device.
Background technology
The coal powder storage and supply device that uses at present, the problem that the ubiquity volume is less than normal can't satisfy the demand of large-tonnage boiler.Rule of thumb, the coal dust reserves in the coal dust storage tank should be able to be advisable by the assurance device consumption of 5～10 days, and coal powder storage and supply device used mostly is 150m most at present
3, only can satisfy the consumption of 1～2 day in the application of bigger device, and be the corresponding boiler of cover coal powder storage and supply device, no matter be that economy or layout aspect, space all exist larger problem.
Summary of the invention
For the problems referred to above, the purpose of this utility model be to provide a kind of can be simultaneously to the combined coal powder storage and supply device of two boilers for powder.
For achieving the above object, the utility model is taked following technical scheme: a kind of combined coal powder storage and supply device is characterized in that: it comprises tube cell on a storage powder tank, two gravimetric tanks, two loaders and coal dust; The top of described storage powder tank is provided with explosion proof door, and the inner top of described storage powder tank is provided with a sack cleaner; The upper portion side wall of described storage powder tank is provided with a high charge level meter, and the lower sides of described storage powder tank is provided with a low level-sensing device, is arranged at intervals with some temperature sensors on the described storage powder pot sidewall between described high charge level meter and described low level-sensing device; The described storage powder tank bottom of described low level-sensing device below is divided into two taper storehouses, and the bottom discharge mouth place in two described taper storehouses is provided with a strength fluidizer and an electronic blanking revolving valve; The charging aperture of described two gravimetric tanks is connected respectively the discharging opening in a described taper storehouse of described storage powder tank; The sidewall of described two gravimetric tanks all hangs on one group of LOAD CELLS, and each described LOAD CELLS is fixed on operating platform; The bottom discharge mouth place of described two gravimetric tanks is provided with agitating device; Be provided with a pressure-equalizing pipe between described two gravimetric tanks and described storage powder tank; Described two loaders include a support stand, are provided with the feed spiral that is positioned at described gravimetric tank bottom discharge mouth below on described support stand, and the below of described feed spiral is provided with primary air fan, is provided with manual air-valve on described primary air fan; On described coal dust, an end of tube cell connects the coal dust tank car, and the other end is through described storage powder tank top from bottom to top, is communicated with described storage powder tank inside.
The exit in two described taper storehouses of described storage powder tank all is disposed with a manual push-pull valve, and described hand operated gate valve is positioned at the top of described electronic blanking revolving valve, the below of described strength fluidizer.
The top of described two gravimetric tanks is provided with one and checks hand hole, is provided with every screen cloth in described inspection hand hole.
Described high charge level is counted the rotating level-sensing device of high steric-hindrance amino.
Described low material level is counted low level blocking rotary type level-sensing device.
The volume of described storage powder tank is 1000m
3
The utility model is owing to taking above technical scheme, and it has the following advantages: 1, the storage powder tankage size of the utility model device can be set to 1000m
3, storage powder tank bottom is divided into two taper storehouses, therefore, can give simultaneously two boilers for powder.2, the utility model storage powder pot bottom arranges gravimetric tank, the sidewall of gravimetric tank all hangs on one group of LOAD CELLS, and therefore, the gravimetric tank of weighing in real time reaches the wherein weight of coal dust, according to weighing demonstration, can prevent from lacking in tank powder or full powder during auto feed.3, be provided with high charge level meter and low level-sensing device in storage powder tank of the present utility model, be respectively used to measure the low material level of coal dust high charge level and coal dust, therefore, when breeze material position reaches the high charge level instrumentation and decides scope, measure and control device can give the alarm, and reminds operating personnel to stop feeding in raw material, when breeze material position reaches low level-sensing device measurement range, measure and control device can give the alarm, and reminds operating personnel in time reinforced.4, storage powder of the present utility model tank top is provided with explosion proof door, and when spontaneous combustion of pulverized coal in storage powder tank or the reason such as catch fire caused the tank internal pressure sharply to rise, explosion proof door was opened, release, therefore, can prevent that the equipment explosion from jeopardizing personal safety, reduces harm.The utility model installed capacity is large, and structure arranges ingenious, and is easy to operate, and automaticity is high, can give simultaneously two boilers for powder, can be widely used in the coal powder storage and supply process.
Description of drawings
Fig. 1 is the utility model structural representation
Fig. 2 is the utility model schematic top plan view
Fig. 3 is the utility model loader structural representation
The specific embodiment
Below in conjunction with drawings and Examples, the utility model is described in detail.
As shown in Figure 1, the utility model mainly comprises tube cell 4 on storage 2, two loaders 3 of powder tank (storehouse) 1, two gravimetric tank (storehouse) and coal dust.
As shown in Figure 2, storage powder tank of the present utility model 1 top is symmetrically arranged with two explosion proof doors 11, and as shown in Figure 1, the inner top middle position of storage powder tank 1 is provided with a small-sized sack cleaner 12.The position of storage powder tank 1 sidewall 75% material level is provided with a high charge level meter 13, and the position of storage powder tank 1 sidewall 30% material level is provided with a low level-sensing device 14, is arranged at intervals with three temperature sensors 15 on storage powder tank 1 sidewall between high charge level meter 13 and low level-sensing device 14.The bottom that storage powder tank 1 bottom of low level-sensing device 14 belows is divided into taper storehouse, 16, two, two taper storehouses 16 is provided with a strength fluidizer 17, provides compressed air by strength fluidizer 17 in taper storehouse 16.The bottom discharge mouth place in two taper storehouses 16 of storage powder tank 1 is provided with a manual push-pull valve 18, and the below of hand operated gate valve 18 is provided with an electronic blanking revolving valve 19.
As shown in Figure 1, two gravimetric tanks 2 of the present utility model are tapered, and its charging aperture is connected respectively the discharging opening in a taper storehouse 16 of storage powder tank 1, and the top of two gravimetric tanks 2 is provided with one and checks hand hole 21; The sidewall of two gravimetric tanks 2 all hangs on one group of LOAD CELLS 22, and each LOAD CELLS 22 is fixed on (not shown) on operating platform; At the bottom of the cone of two gravimetric tanks 2, discharging opening is equipped with agitating device 23.Be provided with a pressure-equalizing pipe 24 between two gravimetric tanks 2 and storage powder tank 1, be used for the pressure of balance weighing tank 2 and storage powder tank 1.
As Fig. 1, shown in Figure 3, two loader 3 correspondences of the present utility model are positioned at the discharging opening below of two gravimetric tanks 2, each loader 3 includes a support stand 31, be provided with the feed spiral 32 that is positioned at gravimetric tank 2 bottom outputs on support stand 31, the below of feed spiral 32 is provided with primary air fan 33, is provided with manual air-valve 34 on primary air fan 33.
As shown in Figure 1, on coal dust of the present utility model, tube cell 4 one ends connect the coal dust tank car by the powder filter, and the other end is through storage powder tank 1 top from bottom to top, are communicated with storage powder tank 1 inside.
In above-described embodiment, two gravimetric tanks 3 all hang on one group of LOAD CELLS 22, and each group can comprise three LOAD CELLSs 22.
In above-described embodiment, high charge level meter 13 can be the rotating level-sensing device of high steric-hindrance amino, also can be radio frequency admittance formula level-sensing device, perhaps Plumb-bob Material Level Meter; Low level-sensing device 14 can be low level blocking rotary type level-sensing device 13.
In above-described embodiment, the utility model also comprises measure and control device, high charge level meter 13, low level-sensing device 14, and temperature sensor 15, electronic blanking revolving valve 19, LOAD CELLS 22 etc. all connect measure and control device, the control method of measure and control device can adopt existing techniques in realizing, no longer describes in detail at this.
The method of operating of the utility model device comprises the following steps:
1) pass into coal dust from bottom to top in storage powder tank 1 by tube cell on coal dust 4, coal dust falls, and enters two taper storehouses 16; The strength fluidizer 17 that 16 bottoms, two taper storehouses arrange blows drum by strength makes coal dust loosening, thereby promotion coal dust blanking correspondence respectively enters two gravimetric tanks 2, if long-time weight is less without increasing or increasing, can open in short-term strength fluidizer 17 for several times, fall to promote coal dust.At this moment, the electronic blanking revolving valve 19 that arranges on two gravimetric tanks 2 is opening, be beneficial to from storage powder tank 1 reinforced to gravimetric tank 2, when electronic blanking revolving valve 19 breaks down, can pass through hand operated gate valve 18 block coal dusts, in order to carry out overhaul of the equipments, be full-gear during hand operated gate valve 18 normal operation, do not need frequent switch.
2) sidewall of two gravimetric tanks 2 all hangs on one group of LOAD CELLS 22, each LOAD CELLS 22 is fixed on the operating platform edge, reach the wherein weight of coal dust (weigh and show that numerical value is the rear coal dust net weight of peeling) by real-time weighing gravimetric tank 2, can prevent two interior scarce powder of gravimetric tank 2 or full powder.When lacking powder, the electronic blanking revolving valve 19 of the automatic unlatching of measure and control device adds powder in gravimetric tank 2, and during full powder, the electronic blanking revolving valve 19 of autoshutdown stops adding powder.
3) at the bottom of the cone of two gravimetric tanks 2, agitating device 23 is installed, by the loose coal dust of agitating device 23, is beneficial to the coal dust blanking in loader 3.Loader 3 is quantitative coal powder supply device, realizes that by VFC feed quantity changes, and frequency is higher in the certain frequency scope, and feed quantity is larger, and the feed accuracy error is no more than 5%.
4) feed spiral 32 pulverized coal conveyings in loader 3, reach dosing by variable frequency adjustment, comes pulverized coal conveying to boiler-burner by the primary air fan 33 empty streams of output high pressure simultaneously.The manual air-valve 34 that arranges on primary air fan 33 can be used for regulating the powder feeding air quantity, debugs to need not frequent adjustment after complete.
In the process of carrying out above-mentioned steps, the coal dust high charge levels in the high charge level meter 13 the real time measure storage powder tanks 1 of storage powder tank 1 top setting, when breeze material position reached the measurement range of high charge level meter 13, measure and control device gave the alarm, and reminded operating personnel should stop feeding in raw material; The low material level of coal dust in the low level-sensing device 14 the real time measure storage powder tanks 1 that storage powder tank 1 bottom arranges, when breeze material position reached the measurement range of low level-sensing device 14, measure and control device gave the alarm, and reminded operating personnel in time to feed in raw material; Three temperature sensors 15 that storage powder tank 1 sidewall arranges, coal dust temperature in Real-Time Monitoring storage powder tank 1, when the coal dust temperature surpasses uniform temperature, namely judge and store up powder tank 1 interior coal dust soon or begun spontaneous combustion, take immediately the precautionary measures, such as be filled with inert gas etc. in storage powder tank 1, make coal dust and oxygen isolated, thereby avoid the generation of spontaneous combustion or spread; When storage powder tank 1 caused the tank internal pressure sharply to rise due to spontaneous combustion of pulverized coal or the reason such as catch fire, explosion proof door 11 was opened, release, jeopardizes personal safety to reach the equipment explosion of preventing, the purpose that reduces to endanger.
In above-described embodiment, storage powder tank 1 of the present utility model is for being used for holding and storing the tank container of coal dust, and storage powder tank volume can be decided according to user's practical condition, and its design stores ability is 5～10 days usually.The capacity of the utility model device can be set to 1000m
3, give simultaneously two boilers for powder.
In above-described embodiment, gravimetric tank 2 of the present utility model is used for the tank container of metering coal dust, and it is 3.87 tons that its coal dust weighs.Be intermittent feeding, continuous discharge when using due to gravimetric tank 2, so charging and discharging be when opening simultaneously, the weight of coal dust in 2 retort of gravimetric tank can not the true consumption of coal dust in the measurement unit time; As measure pulverized coal consumption, and need to read the coal dust weight difference of certain hour section when charging is closed, and be scaled to the unit interval coal consumption, for reducing error, choosing of time period should be as far as possible long, as 5 minutes or 10 minutes.
In above-described embodiment, be provided with every the screen cloth (not shown) in inspection hand hole 21 of the present utility model, be mainly used in checking the interior situation of gravimetric tank 2 and quality of pc, to be intercepted by screen cloth because of the humidity caking as being mixed with bulk foreign material or coal dust in coal dust, to reduce the impact on loader and combustion stability.
In above-described embodiment, the supporting compressed air surge tank that is provided with of sack cleaner 12 of the present utility model is connected with a draining (dirt) pipe, and on this draining (dirt) pipe, manual ball valve is set on the compressed air surge tank.Filtering exhaust when sack cleaner 12 is used for adding powder to storage powder tank 1 strength prevents from causing dust pollution.The auxiliary pulse valve of sack cleaner 12 is used for controlling compressed-air actuated winding-up, regularly to clean filter bag.The compressed air surge tank is used for temporary transient store compressed air, opens and closes by the solenoid control that arranges on it, during with assurance equipment cleaning filter bag, reaches requirement tolerance.
In above-described embodiment, the utility model device can whole installation on a support, and because the utility model device is huge, the stair for the operating personnel up and down can be set, and the platform of having a rest for operating personnel.
The various embodiments described above only are used for explanation the utility model; wherein the structure of each parts, connected mode etc. all can change to some extent; every equivalents of carrying out on the basis of technical solutions of the utility model and improvement all should not got rid of outside protection domain of the present utility model.
Claims (10)
1. combined coal powder storage and supply device is characterized in that: it comprises tube cell on a storage powder tank, two gravimetric tanks, two loaders and coal dust;
The top of described storage powder tank is provided with explosion proof door, and the inner top of described storage powder tank is provided with a sack cleaner; The upper portion side wall of described storage powder tank is provided with a high charge level meter, and the lower sides of described storage powder tank is provided with a low level-sensing device, is arranged at intervals with some temperature sensors on the described storage powder pot sidewall between described high charge level meter and described low level-sensing device; The described storage powder tank bottom of described low level-sensing device below is divided into two taper storehouses, and the bottom discharge mouth place in two described taper storehouses is provided with a strength fluidizer and an electronic blanking revolving valve;
The charging aperture of described two gravimetric tanks is connected respectively the discharging opening in a described taper storehouse of described storage powder tank; The sidewall of described two gravimetric tanks all hangs on one group of LOAD CELLS, and each described LOAD CELLS is fixed on operating platform; The bottom discharge mouth place of described two gravimetric tanks is provided with agitating device; Be provided with a pressure-equalizing pipe between described two gravimetric tanks and described storage powder tank;
Described two loaders include a support stand, are provided with the feed spiral that is positioned at described gravimetric tank bottom discharge mouth below on described support stand, and the below of described feed spiral is provided with primary air fan, is provided with manual air-valve on described primary air fan;
On described coal dust, an end of tube cell connects the coal dust tank car, and the other end is through described storage powder tank top from bottom to top, is communicated with described storage powder tank inside.
2. a kind of combined coal powder storage and supply device as claimed in claim 1, it is characterized in that: the exit in two described taper storehouses of described storage powder tank all is disposed with a manual push-pull valve, described hand operated gate valve is positioned at the top of described electronic blanking revolving valve, the below of described strength fluidizer.
3. a kind of combined coal powder storage and supply device as claimed in claim 1 is characterized in that: the top of described two gravimetric tanks is provided with one and checks hand hole, is provided with every screen cloth in described inspection hand hole.
4. a kind of combined coal powder storage and supply device as claimed in claim 2 is characterized in that: the top of described two gravimetric tanks is provided with one and checks hand hole, is provided with every screen cloth in described inspection hand hole.
5. as claimed in claim 1 or 2 or 3 or 4 a kind of combined coal powder storage and supply device, it is characterized in that: described high charge level is counted the rotating level-sensing device of high steric-hindrance amino.
6. as claimed in claim 1 or 2 or 3 or 4 a kind of combined coal powder storage and supply device, it is characterized in that: described low material level is counted low level blocking rotary type level-sensing device.
7. a kind of combined coal powder storage and supply device as claimed in claim 5, it is characterized in that: described low material level is counted low level blocking rotary type level-sensing device.
8. as claim 1 or 2 or 3 or 4 or 7 described a kind of combined coal powder storage and supply devices, it is characterized in that: the volume of described storage powder tank is 1000m
3
9. a kind of combined coal powder storage and supply device as claimed in claim 5, it is characterized in that: the volume of described storage powder tank is 1000m
3
10. a kind of combined coal powder storage and supply device as claimed in claim 6, it is characterized in that: the volume of described storage powder tank is 1000m
3
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220657150 CN202973144U (en) | 2012-12-03 | 2012-12-03 | Combined coal dust storage and supply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220657150 CN202973144U (en) | 2012-12-03 | 2012-12-03 | Combined coal dust storage and supply device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202973144U true CN202973144U (en) | 2013-06-05 |
Family
ID=48514213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220657150 Withdrawn - After Issue CN202973144U (en) | 2012-12-03 | 2012-12-03 | Combined coal dust storage and supply device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202973144U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102966967A (en) * | 2012-12-03 | 2013-03-13 | 煤炭科学研究总院 | Combined pulverized coal storage and supplying device |
| CN105438849A (en) * | 2015-10-29 | 2016-03-30 | 成都易态科技有限公司 | Dust discharging process and dust discharging structure used for yellow phosphorus gas purifying |
| CN111891730A (en) * | 2020-08-10 | 2020-11-06 | 长春市华宇机电输送设备有限公司 | Reciprocating coal feeder with iron removal function |
| CN114807475A (en) * | 2022-05-30 | 2022-07-29 | 李观升 | Novel-structure coal injection device of blast furnace iron-making energy-saving low-carbon powder making and injection system |
-
2012
- 2012-12-03 CN CN 201220657150 patent/CN202973144U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102966967A (en) * | 2012-12-03 | 2013-03-13 | 煤炭科学研究总院 | Combined pulverized coal storage and supplying device |
| CN102966967B (en) * | 2012-12-03 | 2015-05-13 | 煤炭科学技术研究院有限公司 | Combined pulverized coal storage and supplying device |
| CN105438849A (en) * | 2015-10-29 | 2016-03-30 | 成都易态科技有限公司 | Dust discharging process and dust discharging structure used for yellow phosphorus gas purifying |
| CN111891730A (en) * | 2020-08-10 | 2020-11-06 | 长春市华宇机电输送设备有限公司 | Reciprocating coal feeder with iron removal function |
| CN114807475A (en) * | 2022-05-30 | 2022-07-29 | 李观升 | Novel-structure coal injection device of blast furnace iron-making energy-saving low-carbon powder making and injection system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHINA COAL RESEARCH INSTITUTE CO., LTD. Free format text: FORMER OWNER: COAL GENERAL ACADEMY Effective date: 20140825 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20140825 Address after: 100013 Chaoyang District, Hepingli Youth Ditch Road, No. 5, No. Patentee after: Co., Ltd of coal science and technology academy Address before: 100013 Chaoyang District, Hepingli Youth Ditch Road, No. 5, No. Patentee before: General Research Institute of Coal Science |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20130605 Effective date of abandoning: 20150513 |
|
| RGAV | Abandon patent right to avoid regrant |