CN110898892A

CN110898892A - Automatic blanking type coal mill for thermal power plant

Info

Publication number: CN110898892A
Application number: CN201911214117.9A
Authority: CN
Inventors: 倪培林; 李玮; 田润平; 周恩浩; 张忠兴; 丛士超
Original assignee: Datang Dongying Power Generation Co Ltd
Current assignee: Datang Dongying Power Generation Co Ltd
Priority date: 2019-12-02
Filing date: 2019-12-02
Publication date: 2020-03-24
Anticipated expiration: 2039-12-02
Also published as: CN110898892B

Abstract

The invention discloses an automatic blanking type coal mill for a thermal power plant, which comprises a connecting port embedded in the center of the upper surface of a main body, and a blanking port embedded in the center of the lower surface of the main body, and is characterized in that: two first hydraulic pumps are respectively installed on two sides of the inner wall of the main body through bolts, the output ends of the first hydraulic pumps are respectively provided with the first hydraulic pumps in a threaded manner, the end points of the two first hydraulic pumps on the two sides are respectively and rotatably connected with a clamping plate through a pin shaft, copper clamping plates are respectively welded on the adjacent surfaces of the clamping plates, steel clamping plates are respectively welded on the adjacent surfaces of the copper clamping plates, and bulges are uniformly welded on the adjacent surfaces of the steel clamping plates; through setting up second hydraulic stem and third hydraulic stem, cooperate four first hydraulic stems and curved multiunit striking plates for strike many times when using, make its centre gripping more effectual breakage of carrying on between splint.

Description

Automatic blanking type coal mill for thermal power plant

Technical Field

The invention relates to the technical field of coal grinding equipment of power plants, in particular to an automatic blanking type coal mill for a thermal power plant.

Background

Coal mills are machines for breaking up and grinding coal briquettes into coal dust, which are important auxiliary equipment for coal dust furnaces. The grinding machine comprises a vertical type flour mill, a high-pressure suspension roller mill, a medium-speed micro-powder mill, an overpressure trapezoidal mill, a Raymond mill and the like.

The coal grinding process is a process in which coal is crushed and its surface area is increased continuously. To increase the new surface area, the binding force between solid molecules must be overcome, and thus energy is consumed. The coal is ground into coal powder in a coal mill mainly by three modes of crushing, smashing and grinding. Wherein the energy consumed by the crushing process is the least. The grinding process is most energy intensive. The two or three modes of the various coal mills are combined in the pulverizing process, but the main mode is determined by the type of the coal mill.

When the prior art coal mill is used, due to the defects of the structure of the prior art coal mill, the prior art coal mill does not have necessary small blocks, but the prior processing needs a lot of crushing equipment or manual crushing.

However, the coal mill installations in the prior art have the following disadvantages when in use:

1. the coal pulverizer in the prior art adopts the mode of quick rotation to the broken mode of coal cinder to and the mode of striking is broken, however the energy that its consumption of such mode greatly increased to can't satisfy the prior art needs.

2. The feeding of the coal pulverizer in the prior art is generally operated manually, so that a large amount of manpower and material resources are wasted when the coal pulverizer is used, and the requirement of the prior art cannot be met.

Disclosure of Invention

The invention aims to provide an automatic blanking type coal mill for a thermal power plant, which aims to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a thermal power plant is with automatic unloading type coal pulverizer, inlays including body upper surface central point and has the connector, main part lower surface central point inlay and have feed opening, its characterized in that: the main part inner wall both sides all install two first hydraulic pumps through the bolt, the equal screw thread of first hydraulic pump output install first hydraulic pump, two of both sides first hydraulic pump termination department all be connected with splint through the round pin axle rotation, the adjacent surface of splint all weld and have copper splint, the adjacent surface of copper splint all weld and have steel splint, the even welding of adjacent surface of steel splint have the arch.

The splint further comprises: a first impact plate; a second impact plate; a third impact plate; a fourth impact plate; splint phase-to-phase face central point put and all welded first striking plate, first striking plate one side all welded the second striking plate, second striking plate one side all welded the third striking plate, third striking plate one side all welded the fourth striking plate, first striking plate, second striking plate, third striking plate and fourth striking plate be hemispherical structure.

Preferably, the main body further comprises: a mounting frame; a third hydraulic lever; a strike rack; a ball head; two of second hydraulic pump both sides first hydraulic pump between the main part on all inlay and have the mounting bracket, mounting bracket central point put and install the third hydraulic stem through the bolt, the main part side periphery of mounting bracket top all install the second hydraulic pump through the bolt, the second hydraulic pump output pass through the pipeline and be connected with the second hydraulic stem input, the adjacent end welding of third hydraulic stem have the striking frame, striking frame one end all welded the bulb, the position of bulb correspond the position of fourth striking plate.

Preferably, the mounting frame further comprises: a second hydraulic rod; a third hydraulic pump; knocking the ball; the peripheral mounting bracket of third hydraulic stem on install four second hydraulic stems through the screw thread, second hydraulic stem one end all inlay and hit the ball, the peripheral third hydraulic pump of all installing through the bolt in main part side of mounting bracket below, third hydraulic pump power take off end be connected with four second hydraulic stem power input ends through pipeline respectively, the position of hitting the ball correspond and hit a peripheral position.

Preferably, the main body further comprises: a feeding bin; a butterfly valve; a motor; the connector top screw thread install the feeding storehouse, the feeding storehouse close to bottom department screw thread install the butterfly valve, butterfly valve one side install the motor through motor support and bolt.

Preferably, the butterfly valve further comprises: a valve plate; a rubber pad; a limiting block; the butterfly valve is characterized in that the power output end of the motor penetrates through the periphery of the butterfly valve and is provided with a valve plate through a bolt, a rubber pad is pasted on the edge of the valve plate, and a limiting block is welded on the inner wall of the butterfly valve above the corresponding valve plate.

Preferably, the butterfly valve further comprises: a side plate; a rubber ring; vibrating a motor; correspond butterfly valve inner wall department of another survey of valve plate be the inclined plane structure, butterfly valve inclined plane position department welding have a curb plate, curb plate back department central point put and install shock dynamo through the screw thread, curb plate back middle part and one end department leave the space with the butterfly valve inner wall, curb plate one end department and butterfly valve inner wall between paste and have pasted the rubber ring.

Preferably, the feed opening further comprises: a tuyere; a filter screen; a fan; the feed opening both sides be close to bottom department and all seted up the wind gap, the wind gap be close to the inside one end of feed opening and install the filter screen through the bolt, the wind gap be close to the outside one end of department and install the fan through the bolt.

Preferably, the periphery of the main body at the periphery of the feed opening is welded with brackets, and a support rod is welded between the brackets.

Compared with the prior art, the invention has the beneficial effects that:

1. through setting up second hydraulic stem and third hydraulic stem, cooperate four first hydraulic stems and curved multiunit striking plates for strike many times when using, make its centre gripping more effectual the carrying on damage of coal cinder between splint, carry out a lot of centre gripping when in-service use, thereby reach required coal dust.

2. The butterfly valve is controlled to be opened and closed by the motor, the vibration motor vibrates to prevent residual coal blocks, the trouble of manual loading is avoided during application, and therefore labor cost is reduced more conveniently during use.

3. Through setting up structures such as fan and wind gap when the in-service use, strengthened its whole convenience when using and accelerated its coal drying of piece.

Drawings

FIG. 1 is a schematic view of the overall front cross-sectional structure of the present invention;

FIG. 2 is an enlarged view of the area of FIG. 1A according to the present invention;

FIG. 3 is an enlarged structural view of the area shown in FIG. 1B according to the present invention;

FIG. 4 is a schematic overall front view of the present invention;

FIG. 5 is a schematic side view of a cross-sectional structure of the butterfly valve of the present invention;

fig. 6 is a schematic top view of the butterfly valve of the present invention.

In the figure: 1-a body; 11-a feed opening; 12-tuyere; 13-a fan; 14-a scaffold; 15-a strut; 16-connecting port; 17-a filter screen; 2-a feeding bin; 21-a butterfly valve; 22-a motor; 23-a vibration motor; 24-a valve plate; 25-a rubber pad; 26-a limiting block; 27-side plate; 28-rubber ring; 3-a first hydraulic pump; 31-a first hydraulic lever; 32-clamping plate; 33-copper plywood; 34-a bump; 35-steel clamping plates; 36-a first impingement plate; 37-a second impingement plate; 38-a third impingement plate; 39-a fourth impingement plate; 4-a mounting frame; 41-a second hydraulic rod; 42-a third hydraulic lever; 43-a bump; 44-a third hydraulic pump; 45-impact frame; 46-a ball head; 47-second Hydraulic Pump.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1:

referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a thermal power plant is with automatic unloading type coal pulverizer, includes that 1 upper surface central point of main part puts and inlays and have

connector

16, 1 lower surface central point of main part put and inlay and have feed opening 11, its characterized in that: the main part 1 inner wall both sides all install two first hydraulic pumps 3 through the bolt, the equal screw thread of 3 output ends of first hydraulic pump install first hydraulic pump 31, two of both sides first hydraulic pump 31 extreme point department all be connected with splint 32 through the round pin hub rotation, splint 32 looks proximal surface all weld and have copper splint 33, copper splint 33 looks proximal surface all weld and have steel splint 35, the even welding of steel splint 35 looks proximal surface have protruding 34.

Wherein, through setting up splint 35 to splint 35 bottom is the state of buckling, and when the extrusion when the use after the bottom coincides completely, two first hydraulic pump 31 of top continue work, pressurize and strengthen its extrusion effect and also avoided appearing leaking the condition emergence of expecting when using among the prior art when the extrusion.

The splint 3 further comprises: a first impact plate 36; a second impact plate 37; a third impact plate 38; a fourth impact plate 39; splint 3 looks from a central point and put and all weld first striking plate 36, first striking plate 36 one side all weld second striking plate 37, second striking plate 37 one side all weld third striking plate 38, third striking plate 38 one side all weld fourth striking plate 39, first striking plate 36, second striking plate 37, third striking plate 38 and fourth striking plate 39 be hemispherical structure.

The peripheral welding of main part 1 of feed opening 11 peripheral have support 14, support 14 between the welding have branch 15.

Wherein the stability of the whole is enhanced in actual use.

The main body 1 further comprises: a mounting frame 4; a third hydraulic lever 42; a striking frame 45; a ball head 46; a second hydraulic pump 47; a second hydraulic rod 41; a third hydraulic pump 44; a ball 43; two of both sides main part 1 between the first hydraulic pump 3 on all inlay and have mounting

bracket

4, 4 central point of mounting bracket put and install third hydraulic stem 42 through the bolt, main part 1 side periphery of mounting bracket 4 top all install second hydraulic pump 47 through the bolt, second hydraulic pump 47 output pass through the pipeline and be connected with second hydraulic stem 42 input, the adjacent end welding of third hydraulic stem 42 have striking frame 45, striking frame 45 one end all welding have bulb 46, the position of bulb 46 correspond the position of fourth striking plate 39, peripheral mounting bracket 4 of third hydraulic stem 42 on install four second hydraulic stem 41 through the screw thread, second hydraulic stem 41 one end all inlay and have a ball 43 of striking, main part 1 side periphery of mounting bracket 4 below all install third hydraulic pump 44 through the bolt, the power output end of the third hydraulic pump 44 is connected with the power input ends of the four second hydraulic rods 41 through pipelines respectively, and the position of the collision ball 43 corresponds to the position of the periphery of the collision frame 45.

Wherein, through setting up second hydraulic stem 41 and third hydraulic stem 42 to the curved multiunit striking plate of cooperation, make when using to strike many times, make its centre gripping more effective the breakage of going on of coal cinder between splint 35.

In summary, the following steps: through setting up splint 35, and splint 35 bottom is the state of buckling, when using when the extrusion after the bottom completely coincides, two first hydraulic pumps 31 of top continue work, and when the coal cinder is difficult to the damage, strike one by one through second hydraulic stem 41 and the third hydraulic stem 42 that sets up, and cooperate curved multiunit striking plate, make and strike many times when using, perhaps adopt once powerful impact, make the more effective breakage of coal cinder of its centre gripping between splint 35.

Example 2:

connector

bracket

The main body 1 comprises: a feeding bin 2; a butterfly valve 21; a motor 22; connecting port 16 top screw thread install feeding storehouse 2, feeding storehouse 2 be close to bottom department screw thread install butterfly valve 21, butterfly valve 21 one side install motor 22 through motor support and bolt.

Wherein, through corresponding multiunit feeding storehouse 2 of screw thread installation when using, carry out a plurality of concatenations when using, need the unloading be, open corresponding butterfly valve 21 and wherein the facility of butterfly valve can for strengthen its whole in automatic effect when in actual use.

In summary, the following steps: through the corresponding multiunit feeding storehouse of screw thread installation 2 when using, carry out a plurality of concatenations when using, it is to need the unloading, open corresponding butterfly valve 21 and wherein the facility of butterfly valve can, carry out the centre gripping through the splint 35 that sets up behind the unloading, and splint 35 bottom is the state of buckling, after the bottom completely coincides when the extrusion when using, two first hydraulic pumps 31 of top continue work, and when the briquette is difficult to the damage, strike one by one through the second hydraulic stem 41 and the third hydraulic stem 42 that set up, and cooperate curved multiunit striking plate, make and strike many times when using, perhaps adopt once powerful impact, make its centre gripping more effectual breakage of briquette between splint 35.

Example 3:

as a preferable solution of this embodiment, referring to fig. 5 and fig. 6, the butterfly valve 21 includes: a valve plate 24; a rubber pad 25; a stop block 26; side plates 27; a rubber ring 28; a vibration motor 23; motor 22 power take off end run through butterfly valve 21 periphery and install valve plate 24 through the bolt, 24 edges of valve plate all pasted rubber pad 25, the top position welding that the butterfly valve 21 inner wall corresponds valve plate 24 have stopper 26, correspond another butterfly valve 21 inner wall department of surveying of valve plate 24 be the inclined plane structure, the welding of butterfly valve 21 inclined plane position department have curb plate 27, curb plate 27 back department central point put and install vibrating motor 23 through the screw thread, curb plate 27 back middle part and one end department leave the space with butterfly valve 21 inner wall, curb plate 27 one end department and butterfly valve 21 inner wall between paste rubber ring 28.

The opening and closing of the butterfly valve 21 is controlled through the motor 22, and the vibration motor 23 vibrates to prevent the coal blocks from remaining.

Example 4:

connector

The main body 1 further comprises: a mounting frame 4; a third hydraulic lever 42; a striking frame 45; a ball head 46; a second hydraulic pump 47; a second hydraulic rod 41; a third hydraulic pump 44; a ball 43; two of both sides main part 1 between the first hydraulic pump 3 on all inlay and have mounting bracket 4, 4 central point of mounting bracket put and install third hydraulic stem 42 through the bolt, main part 1 side periphery of mounting bracket 4 top all install second hydraulic pump 47 through the bolt, second hydraulic pump 47 output pass through the pipeline and be connected with second hydraulic stem 42 input, the adjacent end welding of third hydraulic stem 42 have striking frame 45, striking frame 45 one end all welding have bulb 46, the position of bulb 46 correspond the position of fourth striking plate 39, peripheral mounting bracket 4 of third hydraulic stem 42 on install four second hydraulic stem 41 through the screw thread, second hydraulic stem 41 one end all inlay and have a ball 43 of striking, main part 1 side periphery of mounting bracket 4 below all install third hydraulic pump 44 through the bolt, the power output end of the third hydraulic pump 44 is connected with the power input ends of the four second hydraulic rods 41 through pipelines respectively, and the position of the collision ball 43 corresponds to the position of the periphery of the collision frame 45.

Feed opening 11 still include: a tuyere 12; a filter screen 17; a fan 13; the utility model discloses a fan 13, including feed opening 11, filter screen 17, fan 13, the one end of feed opening 11 both sides be close to the bottom department all seted up wind gap 12, wind gap 12 be close to the inside one end of feed opening 11 and install the filter screen 17 through the bolt, the one end of wind gap 12 be close to the outside department install fan 13 through the bolt.

Wherein, through setting up fan 13 and wind gap 12 when the actual ejection of compact, it carries out the drying with higher speed, the insufficient condition of burning appears when preventing follow-up use and takes place.

In summary, the following steps: when in use, a plurality of groups of corresponding feeding bins 2 are installed through threads, a plurality of splicing is carried out when in use, the corresponding butterfly valves 21 and facilities of the butterfly valves are opened to carry out blanking, the blanking is clamped by the arranged clamping plates 35, the bottom ends of the clamping plates 35 are in a bent state, when the bottom ends are completely overlapped during extrusion in use, the two first hydraulic pumps 31 at the upper part continue to work, when the coal briquette is difficult to damage, the coal briquette is impacted one by one through the arranged second hydraulic rod 41 and the third hydraulic rod 42 and is matched with a plurality of arc-shaped groups of impact plates, so that the coal briquette is impacted for a plurality of times when in use, or one-time strong impact is adopted to ensure that the coal blocks clamped between the clamping plates 35 are more effectively crushed and discharged through the feed opening 11 after the crushing is finished, and the discharge is accelerated to be dried when actually discharged through the fan 13 and the tuyere 12.

In the several embodiments provided in the present invention, it should be understood that the disclosed apparatus and method may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the modules or units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate components may or may not be physically separate, and components displayed as units may or may not be physical units, may be located in one place, or may be distributed on multiple units. Some or all of the units can be selected according to actual needs to achieve the purpose of the embodiment.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, a network device, or the like) or a processor (processor) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. The utility model provides a thermal power plant is with automatic unloading type coal pulverizer, includes that main part (1) upper surface central point puts and inlays and have connector (16), main part (1) lower surface central point put and inlay and have feed opening (11), its characterized in that: two first hydraulic pumps (3) are respectively installed on two sides of the inner wall of the main body (1) through bolts, the first hydraulic pumps (31) are respectively installed on the output ends of the first hydraulic pumps (3) in a threaded mode, clamping plates (32) are respectively connected to the end points of the two first hydraulic pumps (31) on the two sides in a rotating mode through pin shafts, copper clamping plates (33) are welded on the adjacent surfaces of the clamping plates (32), steel clamping plates (35) are welded on the adjacent surfaces of the copper clamping plates (33), and bulges (34) are uniformly welded on the adjacent surfaces of the steel clamping plates (35);

the splint (3) further comprises:

a first impact plate (36);

a second impact plate (37);

a third impact plate (38);

a fourth impact plate (39);

splint (3) separate face central point mutually and put and all weld first striking plate (36), first striking plate (36) one side all weld second striking plate (37), second striking plate (37) one side all weld third striking plate (38), third striking plate (38) one side all weld fourth striking plate (39), first striking plate (36), second striking plate (37), third striking plate (38) and fourth striking plate (39) be hemispherical structure.

2. The automatic blanking type coal mill for thermal power plant according to claim 1, characterized in that said main body (1) further comprises:

a mounting frame (4);

a third hydraulic lever (42);

a strike rack (45);

a ball head (46);

second hydraulic pump (47)

Two of both sides main part (1) between first hydraulic pump (3) on all inlay and have mounting bracket (4), mounting bracket (4) central point put and install third hydraulic stem (42) through the bolt, main part (1) side periphery of mounting bracket (4) top all install second hydraulic pump (47) through the bolt, second hydraulic pump (47) output pass through the pipeline and be connected with second hydraulic stem (42) input, the adjacent end welding of third hydraulic stem (42) have striking frame (45), striking frame (45) one end all weld have bulb (46), the position of bulb (46) correspond the position of fourth striking plate (39).

3. The automatic blanking type coal mill for thermal power plants according to claim 2, characterized in that said mounting frame (4) further comprises:

a second hydraulic rod (41);

a third hydraulic pump (44);

a ball (43);

the utility model discloses a hydraulic pressure pump, including mounting bracket (4), third hydraulic stem (42) outlying mounting bracket (4) on install four second hydraulic stem (41) through the screw thread, second hydraulic stem (41) one end all inlay and hit ball (43), main part (1) side periphery of mounting bracket (4) below all install third hydraulic pump (44) through the bolt, third hydraulic pump (44) power take off end be connected with four second hydraulic stem (41) power input end through pipeline respectively, the position of hitting ball (43) correspond and hit frame (45) outlying position.

4. The automatic blanking type coal mill for thermal power plant according to claim 1, characterized in that said main body (1) further comprises:

a feeding bin (2);

a butterfly valve (21);

a motor (22);

connector (16) top screw thread install feeding storehouse (2), feeding storehouse (2) be close to bottom department screw thread and install butterfly valve (21), butterfly valve (21) one side install motor (22) through motor support and bolt.

5. The automatic blanking type coal mill for thermal power plant according to claim 4, characterized in that said butterfly valve (21) further comprises:

a valve plate (24);

a rubber pad (25);

a stop block (26);

motor (22) power take off end run through butterfly valve (21) periphery and install valve plate (24) through the bolt, valve plate (24) edge all pasted rubber pad (25), the top position welding that butterfly valve (21) inner wall corresponds valve plate (24) have stopper (26).

6. The automatic blanking type coal mill for thermal power plant according to claim 5, characterized in that said butterfly valve (21) further comprises:

a side plate (27);

a rubber ring (28);

a vibration motor (23);

correspond butterfly valve (21) inner wall department of valve plate (24) another survey be the inclined plane structure, butterfly valve (21) inclined plane position department welding have curb plate (27), curb plate (27) back department central point put and install shock dynamo (23) through the screw thread, curb plate (27) back middle part and one end department leave the space with butterfly valve (21) inner wall, curb plate (27) one end department and butterfly valve (21) inner wall between paste rubber ring (28).

7. The automatic blanking type coal mill for thermal power plants according to claim 1, characterized in that said blanking opening (11) further comprises:

a tuyere (12);

a filter screen (17);

a fan (13);

feed opening (11) both sides be close to bottom department and all seted up wind gap (12), wind gap (12) be close to the inside one end of feed opening (11) and install filter screen (17) through the bolt, wind gap (12) be close to the one end of outside department and install fan (13) through the bolt.

8. The automatic blanking type coal mill for the thermal power plant according to claim 1, characterized in that: the peripheral welding of feed opening (11) outlying main part (1) have support (14), support (14) between the welding have branch (15).