CN202361815U

CN202361815U - Low-resistance non-material-spilling grate plate

Info

Publication number: CN202361815U
Application number: CN2011203984076U
Authority: CN
Inventors: 敬清海; 宋谦; 邢涛
Original assignee: Chengdu Design & Research Institute Of Building Materials Industry Co Ltd
Current assignee: Chengdu Design & Research Institute Of Building Materials Industry Co Ltd
Priority date: 2011-10-11
Filing date: 2011-10-11
Publication date: 2012-08-01
Anticipated expiration: 2021-10-11

Abstract

Provided is a low-resistance non-material-spilling grate plate used for supporting loose materials and cooling air, mainly consisting of a box-shaped shell (1) and several wind wings (2) with convex-concave sections mounted inside the shell. The bump-shaped sections enable the thin-wall wind wings to have a higher strength and rigidity to bear the weight of the material accumulated above. The adjacent wind wings overlap each other to form a tortuous duct (3), increasing the opening area for air passing and having low air passing resistance. The materials accumulate between the wind wings to form material sealing, thoroughly preventing the downward leakage of materials. The wind wings guide the cooling air to blow out obliquely-upward along the surface thereof, thereby extending the path length and the heat exchange time of the air in the material, preventing the material layer from being blown through and conducing to material delivering.

Description

Lower resistance does not have the material of leakage comb plate

Affiliated technical field

The utility model relates to a kind of lower resistance that is used for the bulk material cooler does not have the material of leakage comb plate.Can for example be used for the carrying and the cooling of the calcination of chamotte of manufacture of cement adaptable across in industries such as building materials, chemical industry, metallurgy.

Background technology

The comb plate is main two basic functions, i.e. air feed cooling and the support material realized in the bulk material cooler.On the one hand, for the air feed effect that obtains, needing the comb plate is that refrigerating gas provides large-area as far as possible passage, has low circulating resistance to reduce air feed pressure energy efficient; On the other hand, for the support material, it is unrestrained to comb plate below to provide stable as far as possible supporting surface to avoid material to pass through gas passage.Therefore, exist the function of certain contradiction to realize good effect simultaneously with these two, certainly exist very big difficulty.

Traditional comb plate is the dull and stereotyped structure that has some apertures; Its aperture opening ratio (supplying area shared percentage in the comb plate gross area of circulation of air) is higher; Thereby air drag is low, but because aperture does not have barrier effect basically to tiny material, causes leaking down from aperture from a large amount of materials; Bring very big problem for the operation of cooler, collection need be set leak the ash bucket of material and special leakage material conveying equipment.

A kind of low leakage material comb plate that existing cooler uses changes flat board into groove plate, and recess sidewall has aperture or slit supplies air to pass through.Other has some similar comb plates; Adopt U-shaped or T section member to be combined to form tortuous air channel; Reduced the leakage rate of material, but because each air channel all needs oneself groove or U-shaped or T section member constructs, suitable comb plate area is used to construct the air channel and can not supplies the part of circulation of air shared by these; Be difficult to obtain high aperture opening ratio, the higher plate resistance power that causes combing of gas flow rate is higher.Simultaneously, the air channel complications are more, and the air outlet slit of adjacency channel is to be provided with face-to-face, air-flow swerve with the process of colliding mutually in produce strong eddy current, equally also increased comb plate resistance power.On the other hand; Strong eddy current also makes comb plate upper end material unstable, and the tiny material of a part is unrestrained below the comb plate through the air channel under the air-flow effect of disorder, and owing to comb plate periphery does not seal; Inevitably there is the gap between comb plate and the comb plate again; Another part material is unrestrained below the comb plate from these slits, thereby still can't avoid Lou material fully, and cooler still needs ash bucket and leaks material conveying device.

Summary of the invention

The utility model is that a kind of lower resistance that is used for the bulk material cooler does not have the material of leakage comb plate; Its upper surface constitutes the bearing-surface of the bulk material of the required cooling of supporting; Through the air channel air supply between the wind wing material is cooled off simultaneously; It is characterized in that: some wind wings (2) with concave-convex cross section are loaded in housing (1) open upper end, and adjacent wind wing overlaps each other and constitutes tortuous air channel (3).The purpose of the utility model is, provides a kind of lower resistance not have the material of leakage comb plate, when thoroughly avoiding material unrestrained, has lower circulation of air resistance, obtains better material cooling effect.

The lower resistance that the utility model provided does not have the material of leakage comb plate, mainly arranges the wind wing (2) with consistent concave-convex cross section by box-like housing (1) and inner several rules thereof and forms (seeing accompanying drawing 1).Housing (1) is the whole box like structure of border seal; Peripheral profile is circle or polygon, and its bottom surface has air inlet (1.1), and housing (1) top has zigzag locating clamp plate (4); This locating clamp plate (4) is connected with wind wing (2) end face, and the housing end face is a little more than wind wing epirelief end face certain distance.The concave-convex cross section of wind wing (2) is made up of with the transition portion (2.3) that becomes point-symmetric epirelief part (2.2) and centre to be connected both with it recessed portion (2.1), and integral body has slick and sly profile.Adjacent wind wing (2) is overlap joint each other, and the epirelief part (2.2) of every wind wing is near its recessed portion (2.1) of a slice wind wing down, and space between the two forms the but tortuous air channel (3) passed through of air of cooling.Solid accumulation forms the sealing of material envelope form reliably in recessed portion (2.1), thoroughly avoids material to leak downwards.The fixed bolt hole of comb plate (1.2) is positioned on four angles of comb plate and is counterbore, avoids the material wearing and tearing with the protection bolt head.

The beneficial effect of the utility model is: positive and negative two surfaces of wind wing (2) all are used to construct the but air channel (3) passed through of air of cooling; Just adjacent air channel (3) has utilized two faces of same wind wing respectively; Share through such wind wing, can obtain the more air circulation area in the same comb plate area, improved aperture opening ratio; Reduced air velocity, therefore the air drag with the comb plate has been reduced to 1500-1760Pa from about 3300Pa; Meanwhile, because positive and negative two surfaces of wind wing (2) all have the cooling air to flow through, can fully be cooled off, thereby obtain its service life prolonging; The cooling but moving path direction of air channel (3) longshore current that passes through of air has changeless area of section, does not have the abrupt change of cross-section can effectively reduce gas-flow resistance; The outlet in all air channels (3) is towards same direction and be tilted to; The generation eddy current that runs foul of each other that this has reduced air-flow on the one hand helps reducing air drag, makes the distance of air process in material upwards longer than directly on the other hand; Having prolonged heat exchanger time has also reduced and has blown the danger of wearing the bed of material; If it is consistent with the throughput direction of material that the direction that air-flow is blown out is arranged as, can also help the conveying of material, alleviate the load of transport; Wind wing (2) positions through draw-in groove on frock clamp, the housing (1) or independent locating clamp plate; Fixed form for weld, be threaded, latch or clamp; Can guarantee accurate positioning; All air channels (3) all have identical sectional area is evenly distributed air-flow, the location work when also having simplified simultaneously assembling; Wind wing (2) has point-symmetric concave-convex cross section, is assembled to housing (1) Rotate 180 of last time and ° still is of similar shape and size, has avoided owing to loading error causes harmful effect; Several such comb plates are installed on the comb bed base plate of cooler jointly; Be combined into comb bed with required film-cooled heat; Because the bottom surface of housing (1) fits tightly with the bed plate upper surface of combing and forms sealing; Housing (1) has the periphery of sealing simultaneously, can force all air all through the air channel (3) between the wind wing (2), prevents to scurry wind and material can't be drained to through the gap between the comb plate to comb below the bed; The comb plate is installed on the comb bed base plate of cooler through the bolt hole that runs through housing (1) from the top down, and it is convenient to install, and single can the completion from the bed of combing installed and removed.

Description of drawings

Accompanying drawing 1 is the utility model sectional structure sketch map

Accompanying drawing 2 is the utility model embodiment perspective views

Accompanying drawing 3 is the utility model embodiment vertical views

Accompanying drawing 4 is the utility model embodiment upward views

Accompanying drawing 5 is that the utility model embodiment wind wing is through locating clamp plate location sketch map

The specific embodiment

Accompanying drawing 2 to accompanying drawing 4 is one of embodiment of this utility model.In this embodiment, comb plate housing (1) peripheral profile is a square, is convenient to like this several comb plates also can keep less clearance at the horizontal and vertical comb bed that rearranges required area between the comb plate.Housing (1) bottom surface has circular air inlet (1.1), and fixed bolt hole (1.2) is positioned on four angles of comb plate and is counterbore, avoids the material wearing and tearing with the protection bolt head.After refrigerating gas gets into air inlet (1.1), upwards overlap the air channel (3) that constitutes each other, be blown into the material of comb plate top along the direction that is tilted to equably through wind wing (2).Wind wing (2) is under the encirclement of cooling air fully, fully cooling, the sealing of top solid accumulation formation material envelope form simultaneously; All the time some material rests on the wind wing; This part material and wind wing do not have relative motion, make the wind wing base originally not frayed, can obtain very long service life.

Wind wing (2) positions through the locating clamp plate (4) of below, sees accompanying drawing 5.Locating clamp plate (4) is for erectting the flat part of installing, and its top edge is the zigzag with definite size.Wind wing (2) is put on it and when fitting, all wind wings have promptly obtained correct positioning, obtained uniform gap simultaneously each other automatically.

Claims

1. a lower resistance that is used for the bulk material cooler does not have the material of leakage comb plate; Its upper surface constitutes the bearing-surface of the bulk material of the required cooling of supporting; Through the air channel air supply between the wind wing material is cooled off simultaneously; It is characterized in that: some wind wings (2) with concave-convex cross section are loaded in housing (1) open upper end, and adjacent wind wing overlaps each other and constitutes tortuous air channel (3).

2. lower resistance according to claim 1 does not have the material of leakage comb plate; It is characterized in that: the concave-convex cross section of wind wing (2) is made up of with the transition portion (2.3) that becomes point-symmetric epirelief part (2.2) and centre to be connected both with it recessed portion (2.1), and integral body has slick and sly profile.

3. lower resistance according to claim 1 does not have the material of leakage comb plate; It is characterized in that: adjacent wind wing (2) is overlap joint each other; The epirelief part (2.2) of every wind wing is near the recessed portion (2.1) of a slice wind wing under it; Space between the two forms tortuous air channel (3), and the outlet in all air channels is towards same direction, and is tilted to.

4. lower resistance according to claim 1 does not have the material of leakage comb plate; It is characterized in that: housing (1) is the whole box like structure of border seal open upper end; Its bottom surface has air inlet (1.1), and the housing end face is higher than wind wing epirelief end face, and housing top has zigzag locating clamp plate (4).

5. lower resistance according to claim 1 does not have and leaks material comb plate, and it is characterized in that: housing (1) bottom surface has circular air inlet (1.1), and fixed bolt hole (1.2) is positioned on four angles of comb plate and is counterbore.