CN101850907A

CN101850907A - Dry residue chamber

Info

Publication number: CN101850907A
Application number: CN200910020125A
Authority: CN
Inventors: 陈松灵
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-03-31
Filing date: 2009-03-31
Publication date: 2010-10-06
Anticipated expiration: 2029-03-31
Also published as: CN101850907B

Abstract

The invention provides a dry residue chamber which can solve the problems that in the prior art, an unloading device can be blocked easily or the flow rate of the unloading device can not be controlled easily, the unloading device needs to be maintained frequently, the ash residue raise is serious in the loading process, the utilization rate of the chamber is low, and the like. The dry residue chamber comprises a chamber body, an unloading device, a bracket and a bulk mechanism. Because a rotary ploughshare in a specific structural type and a bulk machine are designed, dry residues can be easily shifted into the bulk machine by the rotary ploughshare; and in the whole processes of unloading residues and car loading, the dry residues are sealed, so that ash residues and dust can not diffuse to the outside, thereby avoiding the environment pollution. In addition, the height of the dry residue chamber of the invention is 2.2 meters lower than the height of the dry residue chamber with the same diameter and the same effective volume in the prior art.

Description

Dry residue chamber

Technical field

The present invention relates to the equipment that coal fired thermal power plant uses, relate in particular to a kind of dried slag storage temporarily of boiler discharge and dry residue chamber of entrucking of being used for.

Background technology

The equipment that coal fired thermal power plant is used for storage temporarily of the dried slag of boiler and entrucking at present claims dry residue chamber, its common structure is shown in Figure 10, Figure 10-1 and Figure 10-2, and dry residue chamber mainly is made of warehouse 31, support 32, electronic vane type device for discharging 33 or pneumatic plate gate-type device for discharging 36 and machine in bulk 34 etc.

From the structure of described electronic vane type device for discharging 33 as can be seen, have several blades on the impeller, slag charge enters in the cavity between the adjacent blades, by wheel rotation slag charge is fallen, and the deficiency of existence is: the cavity between the adjacent blades is less, easily by stuck than the lump slag, add that blade alternate contacts with lime-ash, contact probability is big, makes damage in impeller fast, life-span is low, and maintenance and replacing are frequent.

Pneumatic plate gate-type device for discharging 36 exists main deficiency to be, in the discharge process, and discharging flow control difficulty.

Machine 34 in bulk is the bulk material carloader, is used for pack into oil tank formula gas car and prevent bulk cargo dust pollution environment of bulk cargo, and its adapts to fly ash (dust-like of clearing out of is ash carefully) tinning car from boiler smoke, but is unsuitable for dried slag dress tipping bucket type self-unloading autotruck.Because machine 34 in bulk is by the sleeve pipe that can stretch up and down the feeding mouth of the discharge port in fly ash storehouse and tank car to be tightly connected, and inserts air draught and set up negative pressure in the pipe, thereby the airborne dust of bulk cargo overflows diffusing in atmosphere when preventing entrucking.But dried slag does not have fly ash good flowing power like that, adopted the transportation of tipping bucket type self-unloading autotruck so tank car can not be adopted, and the wagon box of tipping bucket type self-unloading autotruck is an open type, thereby machine in bulk 34 just can't be tightly connected with the wagon box of automobile and prevents the dust pollution environment.

Secondly warehouse top, slag storehouse is the flat-top cylinder, this makes the capacity degree of utilization low, the peripheral capacity of slag awl is empty because the slag that stocking angle is 35 °～40 ° forms coniform slag body from top, storehouse fixing port input back on top, cone tip part contacts Cang Ding, causes the capacity degree of utilization low.

Summary of the invention

Problems such as the invention provides a kind of dry residue chamber, it can solve, and device for discharging that prior art exists is easily stuck or the discharging flow is wayward, and maintenance is frequent, and the serious and capacity degree of utilization of dust pollution is low during entrucking.

In order to reach the purpose that solves the problems of the technologies described above, technical scheme of the present invention is, a kind of dry residue chamber, comprise warehouse, device for discharging, support, machine in bulk, it is characterized in that: described warehouse bottom is described device for discharging, and described device for discharging center is a driving machine, and described driving machine connects transmission shaft, described transmission shaft lower end connects the rotation ploughshare, and the bottom of described warehouse is provided with discharging core pipe;

The structure of described machine in bulk is: the framework center is provided with sleeve pipe, described casing pipe sleeve is contained in outside the described discharging core pipe, many steel ropes are hung described framework through described pulley, and drive steelframe and pull or loosen described steel rope by electric drive hydraulic thruster, make the framework lifting, described steel rope upper end connects described support or described warehouse, and the described steel rope other end is connected on the described steelframe, and there is big packing seal described framework bottom surface.

In technical scheme of the present invention, also have following technical characterictic: described driving machine and described drive shaft cartridge are in a round table-like housing, and described round table-like housing lower end and described warehouse lower end have formed a torus section that supplies lime-ash to pass through jointly.

In technical scheme of the present invention, also have following technical characterictic: described warehouse is made of top round platform, middle part cylinder and bottom rounding platform.

In technical scheme of the present invention, also have following technical characterictic: be provided with the blast pipe and the discharge pipe that ventilate and cool off for driving machine between described warehouse and the described round table-like housing, and the passage that supplies machine dust discharge in bulk.

In technical scheme of the present invention, also have following technical characterictic: described driving machine is vertical direct-coupled electrical machinery reductor.

In technical scheme of the present invention, also have following technical characterictic: described round table-like housing top is made of fixing half cover, movable half cover and turning top cap, and described warehouse highly is provided with turning manhole cover at this.

In technical scheme of the present invention, also have following technical characterictic: described rotation ploughshare is made of a pair of ploughshare driving surface and a common shank, and described a pair of ploughshare driving surface is provided with its rotation axis rotational symmetry, and described shank is contained on the described transmission shaft.

In technical scheme of the present invention, also have following technical characterictic: the arcuate shape of a pair of ploughshare driving surface of described rotation ploughshare is logarithmic spiral or approximate logarithmic spiral.

In technical scheme of the present invention, also have following technical characterictic: described frame roof is provided with a plurality of pulleys, described steelframe is " ten " font structure, described electric drive hydraulic thruster connects an end of described steelframe, and C, the D two ends that are fixed on described steelframe after the associated pulleys are walked around in described many steel rope lower ends.

In technical scheme of the present invention, also have following technical characterictic: described big packing seal is the rubber plate of the whole described framework of cladding bottom surface.

In technical scheme of the present invention, also has following technical characterictic: be provided with soft gland packing between described sleeve pipe and the described discharging core pipe.

In technical scheme of the present invention, also have following technical characterictic: described sleeve pipe bottom is provided with level-sensing device.

The present invention compared with prior art has the following advantages and good effect:

1, round table-like housing in the device for discharging and warehouse lower end form the torus section that passes through for lime-ash jointly, after lime-ash enters torus section, the rotation ploughshare is dialled in discharging core pipe by its driving surface with lime-ash, flows into tipping bucket type self-unloading autotruck wagon box by machine in bulk then.Because the torus section bottom space is big, lime-ash is loosely easily stirred at this, do not stop up, thus the device for discharging reliable operation, light abrasion, long service life.

2, warehouse is made of top round platform, middle part cylinder and bottom rounding platform, can not make the capacity part empty, capacity degree of utilization height.Just with diameter with the aspect ratio of the dry residue chamber of effective volume, the present invention is compared with prior art low about 2.2 meters.

3, be provided with blast pipe and the discharge pipe that ventilates and cool off for driving machine between described warehouse and the described round table-like housing, and the passage that supplies machine dust discharge in bulk.So both realized that driving machine places in the storehouse and simplifies the structure, and had saved the blower fan that machine in bulk in the past must be joined again.

4, lifting mode machine in bulk by the big packing seal and the sealing of slag waggon wagon box of its bottom, thereby in the whole process of entrucking, is in sealing state, and the lime-ash airborne dust is not understood outer loosing and overcome the dust pollution environmental problem.

5, machine in bulk matches by electric drive hydraulic thruster, cross steelframe, pulley and steel rope, makes the framework lifting of machine in bulk steady, reliable, is beneficial to control, and is easy to operate.

Description of drawings

Fig. 1 is a dry residue chamber front view of the present invention;

Fig. 2 is that the device for discharging axle in the dry residue chamber of the present invention cuts open figure;

Fig. 3 is that another axle of device for discharging in the dry residue chamber of the present invention cuts open figure;

Fig. 4 is the A-A cutaway view of Fig. 3;

Fig. 4-the 1st, the diagram of curves of log spiral;

Fig. 5 and Fig. 6 are discharging principle schematic of the present invention;

Fig. 6 is the B-B cutaway view among Fig. 5;

Fig. 7 is the machine front view in bulk in the dry residue chamber of the present invention;

Fig. 8 is the machine birds-eye view in bulk in the dry residue chamber of the present invention;

Fig. 9 is the pusher side view in bulk in the dry residue chamber of the present invention;

Fig. 9-the 1st, the E place enlarged drawing among Fig. 9;

1, warehouse; 2, device for discharging; 3, support; 4, machine in bulk; 5, driving machine; 6, dust channel; 7, transmission shaft; 8, rotation ploughshare; 9, torus section; 10, round table-like housing; 11, bottom through-hole; 12, top cap; 13, movable half cover; 14, manhole cover; 15, hand hole; 16, discharge pipe; 17, fixing half cover; 18, blast pipe; 19, ploughshare driving surface; 20, rectangle big frame; 21, steel rope; 22, pulley; 23, core pipe; 24, sleeve pipe; 25, electric drive hydraulic thruster; 26, steelframe; 27, big rubber pad; 28, being added in slag waggon wagon box long truncated rectangular pyramids shape suitable for reading closes up; 29, level-sensing device; 30, annular soft-filler.

Figure 10 is existing dry residue chamber front view;

Figure 10-the 1st, the enlarged drawing of the electronic vane type device for discharging 33 among Figure 10;

Figure 10-the 2nd, the enlarged drawing of the pneumatic plate gate-type device for discharging 36 among Figure 10;

31, warehouse; 32, support; 33, electronic vane type device for discharging; 34, machine in bulk; 35, tipping bucket type self-unloading autotruck; 36, pneumatic plate gate-type device for discharging; 37, bag dust collector.

The specific embodiment

Embodiment

The dry residue chamber global shape comprises a warehouse 1, device for discharging 2, support 3 and machine in bulk 4 as shown in Figure 1.

Described warehouse 1 is shaped as imitative capitate, promptly is made of top round platform, middle part cylinder and bottom rounding platform three parts.It is empty that the warehouse 1 of version can not make the capacity part like this, capacity degree of utilization height.

The structure of device for discharging 2 such as Fig. 2, Fig. 3, Fig. 4, Fig. 5 and shown in Figure 6, round table-like housing 10 is equipped with in the bottom in the warehouse 1, and vertical direct-coupled electrical machinery reductor 5, transmission shaft 7 and rotation ploughshare 8 are housed in the described round table-like housing 10 from top to bottom successively.Described round table-like housing 10 lower ends and described warehouse 1 lower end have formed a torus section 9 that supplies lime-ash to pass through jointly, referring to Fig. 5.

Described round table-like housing 10 tops by fixing partly cover 17, activity partly cover 13 and turning top cap 12 constituted, described warehouse 1 highly is provided with turning manhole cover 14 at this.Manhole cover 14 lower ends are hinged on the warehouse 1, and manhole cover 14 upper ends are opening end.Be convenient to the maintenance of vertical direct-coupled electrical machinery reductor 5 and transmission shaft 7 like this.Push turning manhole cover 14 during maintenance open, open turning top cap 12, pull down detachable activity and partly cover 13.

Be provided with the several blast pipes 18 and the discharge pipe 16 that ventilate and cool off for vertical direct-coupled electrical machinery reductor 5 between described warehouse 1 and the described round table-like housing 10, also have the passage 6 for machine 4 dust discharges in bulk, described dust discharge passage 6 outlets communicate with space in the storehouse at warehouse 1 top.

Round table-like housing 10 fuses housing 10 and warehouse 1 by the lower end welding of several blast pipes 18 and several pieces floors that link to each other and warehouse 1.

Top cap 12 hinge is associated in fixing partly the cover on 17, and activity is partly covered 13 and partly covered on 17 fixing with bolted, fixingly partly covers 17 and is welded on the round table-like housing 10.Rotation ploughshare 8 can be packed into from warehouse 1 lower end or takes out by hand hole 15.

During machine 4 entruckings in bulk, the dust laden air of discharging from " leak free wagon box " arrives warehouses 1 head room through the bottom through-hole 11 and the dust channel 6 of round table-like housing 10.

Rotation ploughshare 8 is made of a pair of ploughshare driving surface and a common shank, and two ploughshare driving surfaces are provided with its rotation axis rotational symmetry, are installed on the transmission shaft 7 by common shank.

The principle of work and the process of this device for discharging 2 are: vertical direct-coupled electrical machinery reductor 5 rotates through transmission shaft 7 driven in rotation ploughshares 8, and the dried slag that above-mentioned torus section is 9 li is in a pair of curved working face 19 of stirring the lower edge ploughshare of rotation ploughshare 8 center flow and fall into machine 4 in bulk at the bottom of the storehouse.

So center at the bottom of dried slag can down flow to the storehouse the stirring of rotation ploughshare 8 is to have taked special arcwall face because rotate the shape of the driving surface 19 of ploughshare 8, its horizontal section is to decide enough big logarithmic spiral in angle (equiangular spiral) or approximate logarithmic spiral.

Logarithmic spiral is defined as: the sense of motion of moving point directly keeps deciding the moving point trace at angle all the time with the utmost point, its equation is R=ae ^Mc, R is utmost point footpath in the formula, and a is for deciding angle (radian is greater than zero), and e (≈ 2.718281828 irrational numbers) is the end of Napier's logarithm, and m=cota (deciding the cotangent of angle a), c are polar angle.

By translation power Xue Zhi: when deciding angle a greater than the friction angle between dried slag and the steel plate, dried slag can be in steel ploughshare 8 rotary courses moves to centre of gration along ploughshare driving surface 19.Friction coefficient f=0.4～0.6 between dried slag and steel plate, its friction angle ω=arctg (0.4～0.6)=22 °～31 °.Present embodiment is got and is decided angle a=1 radian (57.3 ° of ≈, at this moment equation is reduced to R=e ^0.64c), because should decide angle a,, dried slag dials in machine 4 in bulk thereby can being easy to be rotated ploughshare 8 much larger than friction angle ω.Referring to Fig. 4, Fig. 4-1, Fig. 5 and Fig. 6.

The structure of machine 4 in bulk is shown in Fig. 7, Fig. 8, Fig. 9 and Fig. 9-1, and it comprises a large rectangle framework 20, core pipe 23, sleeve pipe 24, electric drive hydraulic thruster 25 and the steelframe 26 that drives thereof, big rubber pad 27, level-sensing device 29 and four pulleys 22 and four steel ropes 21.The warehouse 1 outlet welding of core pipe 23 upper ends and device for discharging 2, sleeve pipe 24 is one with framework 20, is annular soft-filler 30 between core pipe 23 and the sleeve pipe 24, to play sealing function.

Steelframe 26 is " ten " font structure, and its longitudinal rod one end is connected with electric drive hydraulic thruster 25.Four steel rope 21 upper ends are connected on support 3 or the warehouse 1, and C, the D two ends that are fixed on the transverse bar of steelframe 26 behind four pulleys 22 are walked around in the lower end.Be to guarantee steelframe 26 intensity, connect the other end of longitudinal rod of (welding) steelframe 26 and C, the D two ends of transverse bar with reinforcing bar.The longitudinal rod of framework 20 is contained in two plain bearings, to guarantee the axis back and forth translation of steelframe 26 along this two bearings.

Suitable for reading with the wagon box of the supporting tipping bucket type self-unloading autotruck of this machine in bulk 4, need install a long truncated rectangular pyramids shape additional and close up 28, its width suitable for reading is corresponding with large rectangle framework 20 width of basis machine 4 in bulk.

The principle of work and the process of this machine in bulk are: hang four steel rope 21 upper ends of machine 4 single-pieces in bulk and be fixed on the support 3, certainly, also can be fixed on as required on the warehouse 1.C, the D two ends that four pulleys 22 are fixed on steelframe 26 are walked around in steel rope 21 lower ends, and electric drive hydraulic thruster 25 left and right sides push-and-pull steelframes 26 are to pull or to loosen steel rope 21, and machine 4 in bulk rises overally when pullling, machine 4 whole declines in bulk when loosening; Machine 4 in bulk is in upper when not working, so that slag waggon drives into and leaves and be shifted; Be in during work the next so that with the suitable for reading complete capping of slag waggon wagon box; Lime-ash in slag storehouse 1 is discharged continuously by device for discharging 2, and begins successively one section one section ground wagon box of packing into through this machine in bulk from the wagon box front end; Lime-ash each section of wagon box of packing into all can have slag muck heap high and contact level-sensing device 29, so level-sensing device 29 senders make the automatically controlled work that stops device for discharging 2 at once, and this machine 4 in bulk rises to a high position thereupon automatically, damages with the slag waggon of avoiding being started; Pack into the process of each section wagon box of lime-ash all is after device for discharging 2 is started in automobilist's remote control, and machine 4 in bulk falls automatically in advance, and level-sensing device 29 stops discharging automatically, and machine 4 in bulk raises thereupon automatically.

The length of rectangle big frame 20 of this machine 4 in bulk and big rubber pad 27 thereof satisfies that all to cover wagon box in the entrucking overall process all the time suitable for reading.

The above only is preferred embodiment of the present invention, is not to be the restriction of the present invention being made other form, and any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the equivalent embodiment of equivalent variations.But every technical solution of the present invention content that do not break away to any simple modification, equivalent variations and remodeling that above embodiment did, still belongs to the protection domain of technical solution of the present invention according to technical spirit of the present invention.

Claims

1. dry residue chamber, comprise warehouse (1), device for discharging (2), support (3), machine in bulk (4), it is characterized in that: described warehouse (1) bottom is described device for discharging (2), described device for discharging (2) center is driving machine (5), described driving machine (5) connects transmission shaft (7), described transmission shaft (7) lower end connects rotation ploughshare (8), and the bottom of described warehouse (1) is provided with discharging core pipe (23);

The structure of described machine in bulk (4) is: framework (20) center is provided with sleeve pipe (24), described sleeve pipe (24) is sleeved on outside the described core pipe (23), many steel ropes (21) are hung described framework (20) through associated pulleys (22), and drive steelframe (26) and pull or loosen described steel rope (21) by electric drive hydraulic thruster (25), make described framework (20) lifting, described steel rope (21) upper end connects described support (3) or described warehouse (1), described steel rope (21) other end is connected on the described steelframe (26), and there is packing seal (27) described framework (20) bottom surface.

2. according to the described dry residue chamber of claim 1, it is characterized in that: described driving machine (5) is vertical direct-coupled electrical machinery reductor, it and described transmission shaft (7) are contained in the round table-like housing (10), and described round table-like housing (10) lower end and described warehouse (1) lower end have formed a torus section (9) that supplies lime-ash to pass through jointly.

3. according to the described dry residue chamber of claim 2, it is characterized in that: described warehouse (1) is made of top round platform, middle part cylinder and bottom rounding platform.

4. according to the described dry residue chamber of claim 3, it is characterized in that: be provided with the blast pipe (18) and the discharge pipe (16) that ventilate and cool off for driving machine (5) between described warehouse (1) and the described round table-like housing (10), and the passage (6) that supplies machine in bulk (4) dust discharge, the suitable for reading of the passage of described dust discharge (6) communicates with space in the storehouse at warehouse (1) top.

5. according to the described dry residue chamber of claim 4, it is characterized in that: described round table-like housing (10) top is made of fixing half cover (17), movable half cover (13) and turning top cap (12), and described warehouse (1) highly is provided with turning manhole cover (14) at this.

6. according to the described dry residue chamber of claim 5, it is characterized in that: described rotation ploughshare (8) is made of a pair of ploughshare driving surface (19) and a common shank, described a pair of ploughshare driving surface (19) is provided with its rotation axis rotational symmetry, and described shank is contained on the described transmission shaft (7).

7. according to the described dry residue chamber of claim 6, it is characterized in that: the arcuate shape of a pair of ploughshare driving surface (19) of described rotation ploughshare (8) is logarithmic spiral or approximate logarithmic spiral.

8. according to any described dry residue chamber of claim in the claim 1 to 7, it is characterized in that: described framework (20) top is provided with a plurality of pulleys (22), " ten " font structure of described steelframe (26) for horizontally slipping, described electric drive hydraulic thruster (25) connects an end of described steelframe (26), and described many steel ropes (21) lower end is walked around C, the D two ends that are fixed on described steelframe (26) behind the corresponding pulley (22) respectively.

9. described according to Claim 8 dry residue chamber is characterized in that: described packing seal (27) clads whole framework (20) bottom surface.

10. according to the described dry residue chamber of claim 9, it is characterized in that: be provided with soft gland packing (30) between described sleeve pipe (24) and the described core pipe (23).