CN101318595A - Pebble coal vacuum clearing system - Google Patents
Pebble coal vacuum clearing system Download PDFInfo
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- CN101318595A CN101318595A CNA2007100256836A CN200710025683A CN101318595A CN 101318595 A CN101318595 A CN 101318595A CN A2007100256836 A CNA2007100256836 A CN A2007100256836A CN 200710025683 A CN200710025683 A CN 200710025683A CN 101318595 A CN101318595 A CN 101318595A
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- coal
- stone coal
- stone
- clearing system
- vacuum
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Abstract
The invention relates to a matching device of a coal grinding mill in a heat power plant, in particular to a vacuum cleaning system for cleaning and conveying stone coal, wastes of the coal grinding mill. The stone coal vacuum cleaning system of the invention comprises a plurality of stone coal gathering units which are respectively connected with a plurality of coal grinding mills, the discharge hole of each stone coal gathering unit is respectively connected with a main delivery duct by a branch pipeline, and one end of the main delivery duct is connected with an air pump by a stone coal bin. The matching device of the invention has simple structure, convenient use, low equipment cost and running cost and long service life.
Description
Technical field
The present invention relates to the corollary equipment of the coal mill in a kind of thermal powerplant, specifically is that pebble coal vacuum clearing system is cleared up and carried to a kind of waste material to coal mill-stone coal.
Background technology
The coal mill of thermal powerplant is in operational process, and the waste material stone coal that needs to pulverize is cleared up discharge, and stone coal cleaning system finishes the corollary system of this scale removal process.Traditional stone coal cleaning system generally adopts the hydraulic blasting system, utilize circulating water system that the stone coal is carried out transferring cleaning, this type systematic not only needs the power system of higher-wattage, and circulating water treatment device need be set, thereby equipment cost, equipment energy consumption and operating cost are all higher, in addition, equipment is corrosion easily also, has influenced its service life.
Summary of the invention
Technical matters to be solved by this invention is, provide a kind of simple in structure, easy to use, energy consumption is low, equipment cost and operating cost is low, the pebble coal vacuum clearing system of long service life.
Pebble coal vacuum clearing system of the present invention comprises and many a plurality of stone coal collecting devices of coal mills difference bonded assembly, the discharging opening of each stone coal collecting device is connected with a main delivery pipe by one section discharge pipe respectively, and main delivery pipe one end is connected with vacuum pump through a stone coal bunker.
Described stone coal collecting device includes hopper, and feed hopper bottom is connected with discharging opening by a feeding device.
Described main delivery pipe enters osed top stone coal bunker from top, the top bleeding point of stone coal bunker is connected with vacuum pump through dust collector.
The discharge end that described main feedline enters into the stone coal bunker is provided with cyclone.
Described vacuum pump can comprise separately and dust collector bonded assembly main vacuum pump and appendage vacuum pump.
The bottom of described stone coal bunker is provided with Dump gate.
The discharging opening of described stone coal collecting device and discharge pipe bonded assembly part also are connected with one section intake stack, and the outer end of intake stack is the ventilation inlet that communicates with atmosphere, is provided with the air intake valve between the discharging opening of ventilation inlet and stone coal collecting device.
Pebble coal vacuum clearing system of the present invention is compared with traditional stone coal hydraulic blasting system, it replaces water as pumped (conveying) medium with air, not only water saving, non-secondary pollution, long service life, and saved the investment of drainage bin, sewage disposal device and storage facilities, energy consumption also reduces greatly; Compare with traditional mechanical chipping system and also to have advantages such as system is simple, reliable, investment is little.
Description of drawings
Fig. 1 is an integral structure scheme drawing of the present invention;
Fig. 2 is the structural representation of the stone coal bunker of the embodiment of the invention;
Fig. 3 is stone coal collecting device discharging opening and the discharge pipe and the intake stack bonded assembly structural representation of the embodiment of the invention.
The specific embodiment
As shown in Figure 1, pebble coal vacuum clearing system comprises and a plurality of stone coal collecting devices 1 of many coal mills 7 difference bonded assemblys, the discharging opening 11 of each stone coal collecting device is connected with a main delivery pipe 3 by discharge pipe 2 respectively, one end of main delivery pipe is connected with vacuum pump 5 through stone coal bunker 4, and vacuum pump includes main vacuum pump 51 and appendage vacuum pump 52.
As shown in Figure 2, the bleeding point place, top of stone coal bunker 4 is provided with dust collector 41, and the bottom of stone coal bunker is provided with Dump gate 42, and main delivery pipe enters from the top of stone coal bunker, and at the discharge end place of pipeline stone coal disengagement gear 43 is set.Dust collector can adopt dust removal by filtration equipment such as fiber bag precipitator, and stone coal disengagement gear can adopt cyclone.
As shown in Figure 3, hopper 12 bottoms of stone coal collecting device 1 are connected with discharging opening 11 by a feeding device 13, and the feeding device shown in the figure is a spiral conveyer.Discharging opening and discharge pipe bonded assembly part also are connected with one section intake stack 6, and the outer end of intake stack is the ventilation inlet 61 that communicates with atmosphere, is provided with air intake valve 62 between the discharging opening of ventilation inlet and stone coal collecting device.
The workflow of the embodiment of the invention is:
(1) open vacuum pump, whole stone coal pipe network system all is in vacuum state;
(2) open and the pairing air intake valve of coal mill bonded assembly stone coal collecting device, in cooresponding discharge pipe of this coal mill and main delivery pipe, form high velocity air;
(3) start feeding device in this stone coal collecting device, make the stone coal enter pipeline and in pipeline, flow with air-flow;
(4) the stone coal that enters the stone coal bunker is realized separating of stone coal and dust-contained airflow at cyclone;
(5) dust-contained airflow falls into the stone coal bunker through isolating dust behind the dust exhaustor, and air is through the vacuum pump exhaust to atmosphere;
(6) unsnatch a stone coal in the stone coal collecting device after, stop device for discharging, close the pairing air intake valve of this stone coal collecting device.
Repeating above-mentioned (2)～(6) steps begins stone coal in cleaning and second the coal mill bonded assembly stone coal collecting device, until complete system of cleaning.
Claims (8)
1, a kind of pebble coal vacuum clearing system, comprise a plurality of stone coal collecting devices (1), it is characterized in that: the discharging opening of each stone coal collecting device (11) is connected with a main delivery pipe (3) by one section branch pipeline (2) respectively, and main delivery pipe one end is connected with vacuum pump (5) through a stone coal bunker (4).
2, pebble coal vacuum clearing system according to claim 1 is characterized in that: described main delivery pipe (3) enters osed top stone coal bunker (4) from top, and the top bleeding point of stone coal bunker is connected with vacuum pump (5) through dust collector (41).
3, pebble coal vacuum clearing system according to claim 2 is characterized in that: the discharge end place that main feedline enters into the stone coal bunker is provided with stone coal disengagement gear (43).
4, pebble coal vacuum clearing system according to claim 2 is characterized in that: described vacuum pump (5) comprises separately and dust collector bonded assembly main vacuum pump (51) and appendage vacuum pump (52).
5, pebble coal vacuum clearing system according to claim 2 is characterized in that: the bottom of stone coal bunker is provided with Dump gate (42).
6, according to the described pebble coal vacuum clearing system of one of claim 1～5, it is characterized in that: described stone coal collecting device includes hopper (12), and feed hopper bottom is connected with discharging opening (11) by a feeding device (13).
7, according to the described pebble coal vacuum clearing system of one of claim 1～5, it is characterized in that: the discharging opening of stone coal collecting device (11) also is connected with one section intake stack (6) with branch pipeline (2) bonded assembly part, the outer end of intake stack is the ventilation inlet (61) that communicates with atmosphere, is provided with air intake valve (62) between the discharging opening (11) of ventilation inlet (61) and stone coal collecting device.
8, pebble coal vacuum clearing system according to claim 7 is characterized in that: described stone coal collecting device includes hopper (12), and feed hopper bottom is connected with discharging opening (11) by a feeding device (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100256836A CN101318595A (en) | 2007-08-14 | 2007-08-14 | Pebble coal vacuum clearing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100256836A CN101318595A (en) | 2007-08-14 | 2007-08-14 | Pebble coal vacuum clearing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101318595A true CN101318595A (en) | 2008-12-10 |
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ID=40178914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100256836A Pending CN101318595A (en) | 2007-08-14 | 2007-08-14 | Pebble coal vacuum clearing system |
Country Status (1)
| Country | Link |
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| CN (1) | CN101318595A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101804380A (en) * | 2010-03-05 | 2010-08-18 | 江苏中能电力设备有限公司 | High-efficiency environment-friendly type negative-pressure pneumatic transmission system for pebble coal |
| CN101602026B (en) * | 2009-07-03 | 2010-09-15 | 江苏瑞能电力设备有限公司 | Pebble coal equal pressure discharge device |
| CN105173739A (en) * | 2015-07-10 | 2015-12-23 | 核工业理化工程研究院 | Sampler material pouring device |
-
2007
- 2007-08-14 CN CNA2007100256836A patent/CN101318595A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101602026B (en) * | 2009-07-03 | 2010-09-15 | 江苏瑞能电力设备有限公司 | Pebble coal equal pressure discharge device |
| CN101804380A (en) * | 2010-03-05 | 2010-08-18 | 江苏中能电力设备有限公司 | High-efficiency environment-friendly type negative-pressure pneumatic transmission system for pebble coal |
| CN101804380B (en) * | 2010-03-05 | 2012-01-11 | 江苏中能电力设备有限公司 | High-efficiency environment-friendly type negative-pressure pneumatic transmission system for pebble coal |
| CN105173739A (en) * | 2015-07-10 | 2015-12-23 | 核工业理化工程研究院 | Sampler material pouring device |
| CN105173739B (en) * | 2015-07-10 | 2017-12-15 | 核工业理化工程研究院 | Sampler material-pouring device |
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Open date: 20081210 |